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157081855 = 5712735339
BaseRepresentation
bin10010101110011…
…10000011111111
3101221120120210111
421113032003333
5310203104410
623330450451
73615113410
oct1127160377
9357516714
10157081855
1180739a17
1244733a27
132670b458
1416c0d807
15dbccb8a
hex95ce0ff

157081855 has 16 divisors (see below), whose sum is σ = 217128960. Its totient is φ = 106862112.

The previous prime is 157081831. The next prime is 157081861. The reversal of 157081855 is 558180751.

It is not a de Polignac number, because 157081855 - 211 = 157079807 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13225 + ... + 22114.

It is an arithmetic number, because the mean of its divisors is an integer number (13570560).

Almost surely, 2157081855 is an apocalyptic number.

157081855 is a deficient number, since it is larger than the sum of its proper divisors (60047105).

157081855 is a wasteful number, since it uses less digits than its factorization.

157081855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35478.

The product of its (nonzero) digits is 56000, while the sum is 40.

The square root of 157081855 is about 12533.2300306026. The cubic root of 157081855 is about 539.5628091490.

The spelling of 157081855 in words is "one hundred fifty-seven million, eighty-one thousand, eight hundred fifty-five".

Divisors: 1 5 7 35 127 635 889 4445 35339 176695 247373 1236865 4488053 22440265 31416371 157081855