Search a number
-
+
10871635968 = 22734
BaseRepresentation
bin10100010000000000…
…00000000000000000
31001001122220022220000
422020000000000000
5134231114322333
64554440520000
7533260244454
oct121000000000
931048808800
1010871635968
114679834016
122134a80000
1310434626bb
14751c18664
15439685713
hex288000000

10871635968 has 140 divisors (see below), whose sum is σ = 32480690055. Its totient is φ = 3623878656.

The previous prime is 10871635967. The next prime is 10871635969. The reversal of 10871635968 is 86953617801.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a Jordan-Polya number, since it can be written as (4!)4 ⋅ (2!)15.

It is an interprime number because it is at equal distance from previous prime (10871635967) and next prime (10871635969).

It can be written as a sum of positive squares in only one way, i.e., 5435817984 + 5435817984 = 73728^2 + 73728^2 .

It is an ABA number since it can be written as A⋅BA, here for A=3, B=1536.

It is a super-2 number, since 2×108716359682 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (10871635967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 4 ways as a sum of consecutive naturals, for example, 3623878655 + 3623878656 + 3623878657.

Almost surely, 210871635968 is an apocalyptic number.

10871635968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10871635968

10871635968 is an abundant number, since it is smaller than the sum of its proper divisors (21609054087).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10871635968 is an frugal number, since it uses more digits than its factorization.

10871635968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66 (or 5 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

Multiplying 10871635968 by its sum of digits (54), we get a 7-th power (587068342272 = 487).

The spelling of 10871635968 in words is "ten billion, eight hundred seventy-one million, six hundred thirty-five thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 256 288 324 384 432 512 576 648 768 864 1024 1152 1296 1536 1728 2048 2304 2592 3072 3456 4096 4608 5184 6144 6912 8192 9216 10368 12288 13824 16384 18432 20736 24576 27648 32768 36864 41472 49152 55296 65536 73728 82944 98304 110592 131072 147456 165888 196608 221184 262144 294912 331776 393216 442368 524288 589824 663552 786432 884736 1048576 1179648 1327104 1572864 1769472 2097152 2359296 2654208 3145728 3538944 4194304 4718592 5308416 6291456 7077888 8388608 9437184 10616832 12582912 14155776 16777216 18874368 21233664 25165824 28311552 33554432 37748736 42467328 50331648 56623104 67108864 75497472 84934656 100663296 113246208 134217728 150994944 169869312 201326592 226492416 301989888 339738624 402653184 452984832 603979776 679477248 905969664 1207959552 1358954496 1811939328 2717908992 3623878656 5435817984 10871635968