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157169433 = 3531019787
BaseRepresentation
bin10010101111000…
…11011100011001
3101221202000221010
421113203130121
5310213410213
623332404133
73615626631
oct1127433431
9357660833
10157169433
11807997a3
1244776649
132673c285
1416c336c1
15dbe8ac3
hex95e3719

157169433 has 16 divisors (see below), whose sum is σ = 215649216. Its totient is φ = 101774400.

The previous prime is 157169417. The next prime is 157169447. The reversal of 157169433 is 334961751.

It is not a de Polignac number, because 157169433 - 24 = 157169417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157169391 and 157169400.

It is not an unprimeable number, because it can be changed into a prime (157169413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11166 + ... + 20952.

It is an arithmetic number, because the mean of its divisors is an integer number (13478076).

Almost surely, 2157169433 is an apocalyptic number.

It is an amenable number.

157169433 is a deficient number, since it is larger than the sum of its proper divisors (58479783).

157169433 is a wasteful number, since it uses less digits than its factorization.

157169433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9944.

The product of its digits is 68040, while the sum is 39.

The square root of 157169433 is about 12536.7233757469. The cubic root of 157169433 is about 539.6630648460.

The spelling of 157169433 in words is "one hundred fifty-seven million, one hundred sixty-nine thousand, four hundred thirty-three".

Divisors: 1 3 53 101 159 303 5353 9787 16059 29361 518711 988487 1556133 2965461 52389811 157169433