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157515042850 = 25211286390987
BaseRepresentation
bin1001001010110010100…
…0001101000000100010
3120001120111100020121221
42102230220031000202
510040042322332400
6200210022005254
714244240526114
oct2225450150042
9501514306557
10157515042850
1160890154070
122663b57682a
1311b134a6489
1478a389b3b4
15416d733c1a
hex24aca0d022

157515042850 has 24 divisors (see below), whose sum is σ = 319612342608. Its totient is φ = 57278197200.

The previous prime is 157515042823. The next prime is 157515042857. The reversal of 157515042850 is 58240515751.

It is a super-2 number, since 2×1575150428502 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 157515042797 and 157515042806.

It is not an unprimeable number, because it can be changed into a prime (157515042857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143194944 + ... + 143196043.

It is an arithmetic number, because the mean of its divisors is an integer number (13317180942).

Almost surely, 2157515042850 is an apocalyptic number.

157515042850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157515042850 is an abundant number, since it is smaller than the sum of its proper divisors (162097299758).

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

157515042850 is a wasteful number, since it uses less digits than its factorization.

157515042850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286391010 (or 286391005 counting only the distinct ones).

The product of its (nonzero) digits is 280000, while the sum is 43.

The spelling of 157515042850 in words is "one hundred fifty-seven billion, five hundred fifteen million, forty-two thousand, eight hundred fifty".

Divisors: 1 2 5 10 11 22 25 50 55 110 275 550 286390987 572781974 1431954935 2863909870 3150300857 6300601714 7159774675 14319549350 15751504285 31503008570 78757521425 157515042850