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157453329 = 31122721019
BaseRepresentation
bin10010110001010…
…00110000010001
3101222021110100210
421120220300101
5310302001304
623342434333
73621221415
oct1130506021
9358243323
10157453329
1180973020
12448929a9
132680b567
1416ca8d45
15dc52c89
hex9628c11

157453329 has 16 divisors (see below), whose sum is σ = 230042880. Its totient is φ = 95001360.

The previous prime is 157453321. The next prime is 157453343. The reversal of 157453329 is 923354751.

It is a happy number.

It is not a de Polignac number, because 157453329 - 23 = 157453321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157453321) 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, 3019 + ... + 18000.

It is an arithmetic number, because the mean of its divisors is an integer number (14377680).

Almost surely, 2157453329 is an apocalyptic number.

It is an amenable number.

157453329 is a deficient number, since it is larger than the sum of its proper divisors (72589551).

157453329 is a wasteful number, since it uses less digits than its factorization.

157453329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21260.

The product of its digits is 113400, while the sum is 39.

The square root of 157453329 is about 12548.0408430958. The cubic root of 157453329 is about 539.9878015077.

The spelling of 157453329 in words is "one hundred fifty-seven million, four hundred fifty-three thousand, three hundred twenty-nine".

Divisors: 1 3 11 33 227 681 2497 7491 21019 63057 231209 693627 4771313 14313939 52484443 157453329