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10985472 = 21332149
BaseRepresentation
bin101001111010…
…000000000000
3202200010020100
4221322000000
510303013342
61031242400
7162242421
oct51720000
922603210
1010985472
116223603
123819400
1323782a4
14165d648
15e6ee4c
hexa7a000

10985472 has 84 divisors (see below), whose sum is σ = 31946850. Its totient is φ = 3637248.

The previous prime is 10985441. The next prime is 10985479. The reversal of 10985472 is 27458901.

10985472 is a `hidden beast` number, since 109 + 8 + 547 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10653696 + 331776 = 3264^2 + 576^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (10985479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73654 + ... + 73802.

Almost surely, 210985472 is an apocalyptic number.

10985472 is a gapful number since it is divisible by the number (12) 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 10985472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15973425).

10985472 is an abundant number, since it is smaller than the sum of its proper divisors (20961378).

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

10985472 is an equidigital number, since it uses as much as digits as its factorization.

10985472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 10985472 is about 3314.4338883134. The cubic root of 10985472 is about 222.3000568829.

The spelling of 10985472 in words is "ten million, nine hundred eighty-five thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 149 192 256 288 298 384 447 512 576 596 768 894 1024 1152 1192 1341 1536 1788 2048 2304 2384 2682 3072 3576 4096 4608 4768 5364 6144 7152 8192 9216 9536 10728 12288 14304 18432 19072 21456 24576 28608 36864 38144 42912 57216 73728 76288 85824 114432 152576 171648 228864 305152 343296 457728 610304 686592 915456 1220608 1373184 1830912 2746368 3661824 5492736 10985472