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157170430460 = 22553148273991
BaseRepresentation
bin1001001001100000010…
…1100111000111111100
3120000200110220010022002
42102120011213013330
510033341112233320
6200111511441432
714232554421221
oct2223005470774
9500613803262
10157170430460
116072367973a
1226564086278
1311a89c88614
14786dbd3948
15414d361675
hex24981671fc

157170430460 has 24 divisors (see below), whose sum is σ = 336285413856. Its totient is φ = 61681979840.

The previous prime is 157170430421. The next prime is 157170430481. The reversal of 157170430460 is 64034071751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74135936 + ... + 74138055.

It is an arithmetic number, because the mean of its divisors is an integer number (14011892244).

Almost surely, 2157170430460 is an apocalyptic number.

157170430460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157170430460 is an abundant number, since it is smaller than the sum of its proper divisors (179114983396).

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

157170430460 is a wasteful number, since it uses less digits than its factorization.

157170430460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148274053 (or 148274051 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 157170430460 in words is "one hundred fifty-seven billion, one hundred seventy million, four hundred thirty thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 148273991 296547982 593095964 741369955 1482739910 2965479820 7858521523 15717043046 31434086092 39292607615 78585215230 157170430460