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156107307840 = 26351121343899
BaseRepresentation
bin1001000101100010111…
…0000111101101000000
3112220221101102220020020
42101120232013231000
510024201432322330
6155414213213440
714164325136321
oct2213056075500
9486841386206
10156107307840
1160228561a00
1226308031280
131194a94a093
1477ac934448
1540d9d62210
hex2458b87b40

156107307840 has 168 divisors, whose sum is σ = 544795557600. Its totient is φ = 37844167680.

The previous prime is 156107307791. The next prime is 156107307841. The reversal of 156107307840 is 48703701651.

It is a super-2 number, since 2×1561073078402 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 156107307792 and 156107307801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156107307841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 555790 + ... + 788109.

It is an arithmetic number, because the mean of its divisors is an integer number (3242830700).

Almost surely, 2156107307840 is an apocalyptic number.

156107307840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

156107307840 is an abundant number, since it is smaller than the sum of its proper divisors (388688249760).

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

156107307840 is a wasteful number, since it uses less digits than its factorization.

156107307840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343941 (or 1343920 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 156107307840 in words is "one hundred fifty-six billion, one hundred seven million, three hundred seven thousand, eight hundred forty".