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8148029440 = 21251912083
BaseRepresentation
bin1111001011010100…
…10001000000000000
3210000211221210010011
413211222101000000
5113141343420230
63424304314304
7405626051605
oct74552210000
923024853104
108148029440
113501394131
1216b4912994
139cb1020c5
145741dc6ac
1532a4dae2a
hex1e5a91000

8148029440 has 104 divisors (see below), whose sum is σ = 19664690688. Its totient is φ = 3240591360.

The previous prime is 8148029437. The next prime is 8148029441. The reversal of 8148029440 is 449208418.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 8148029393 and 8148029402.

It is not an unprimeable number, because it can be changed into a prime (8148029441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3910639 + ... + 3912721.

Almost surely, 28148029440 is an apocalyptic number.

8148029440 is a gapful number since it is divisible by the number (80) 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 8148029440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9832345344).

8148029440 is an abundant number, since it is smaller than the sum of its proper divisors (11516661248).

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

8148029440 is a wasteful number, since it uses less digits than its factorization.

8148029440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2303 (or 2281 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 8148029440 is about 90266.4358441165. The cubic root of 8148029440 is about 2012.2604734796.

The spelling of 8148029440 in words is "eight billion, one hundred forty-eight million, twenty-nine thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 191 256 320 382 512 640 764 955 1024 1280 1528 1910 2048 2083 2560 3056 3820 4096 4166 5120 6112 7640 8332 10240 10415 12224 15280 16664 20480 20830 24448 30560 33328 41660 48896 61120 66656 83320 97792 122240 133312 166640 195584 244480 266624 333280 391168 397853 488960 533248 666560 782336 795706 977920 1066496 1333120 1591412 1955840 1989265 2132992 2666240 3182824 3911680 3978530 4265984 5332480 6365648 7957060 8531968 10664960 12731296 15914120 21329920 25462592 31828240 42659840 50925184 63656480 101850368 127312960 203700736 254625920 407401472 509251840 814802944 1018503680 1629605888 2037007360 4074014720 8148029440