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157056098785920 = 27325337373216917
BaseRepresentation
bin100011101101011101111000…
…111110100101101010000000
3202121002102020120012100220200
4203231131320332211222000
5131041201342242122140
61314010324205205200
745036633352632405
oct4355357076455200
9677072216170820
10157056098785920
11460521323587a4
1215746635860800
13698343260a009
142aad7acd482ac
1513255c9b21030
hex8ed778fa5a80

157056098785920 has 384 divisors, whose sum is σ = 545404450116240. Its totient is φ = 41645206536192.

The previous prime is 157056098785903. The next prime is 157056098785967. The reversal of 157056098785920 is 29587890650751.

157056098785920 is a `hidden beast` number, since 1 + 5 + 7 + 0 + 5 + 609 + 8 + 7 + 8 + 5 + 9 + 2 + 0 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 55701623075904 + 101354475710016 = 7463352^2 + 10067496^2 .

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 723929302 + ... + 724146218.

Almost surely, 2157056098785920 is an apocalyptic number.

157056098785920 is a gapful number since it is divisible by the number (10) 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 157056098785920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272702225058120).

157056098785920 is an abundant number, since it is smaller than the sum of its proper divisors (388348351330320).

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

157056098785920 is a wasteful number, since it uses less digits than its factorization.

157056098785920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217652 (or 217637 counting only the distinct ones).

The product of its (nonzero) digits is 381024000, while the sum is 72.

The spelling of 157056098785920 in words is "one hundred fifty-seven trillion, fifty-six billion, ninety-eight million, seven hundred eighty-five thousand, nine hundred twenty".