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157012128 = 25337131997
BaseRepresentation
bin10010101101111…
…01000010100000
3101221110001011000
421112331002200
5310143342003
623325152000
73614403210
oct1126750240
9357401130
10157012128
11806a1599
12446bb600
13266b57b0
1416bd2240
15dbb71a3
hex95bd0a0

157012128 has 192 divisors, whose sum is σ = 563915520. Its totient is φ = 41389056.

The previous prime is 157012111. The next prime is 157012133. The reversal of 157012128 is 821210751.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77626 + ... + 79622.

It is an arithmetic number, because the mean of its divisors is an integer number (2937060).

Almost surely, 2157012128 is an apocalyptic number.

157012128 is a gapful number since it is divisible by the number (18) 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 157012128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (281957760).

157012128 is an abundant number, since it is smaller than the sum of its proper divisors (406903392).

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

157012128 is a wasteful number, since it uses less digits than its factorization.

157012128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036 (or 2022 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 157012128 is about 12530.4480366825. The cubic root of 157012128 is about 539.4829618955.

Adding to 157012128 its reverse (821210751), we get a palindrome (978222879).

The spelling of 157012128 in words is "one hundred fifty-seven million, twelve thousand, one hundred twenty-eight".