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152451397 = 7231100363
BaseRepresentation
bin10010001011000…
…11100101000101
3101121212100000001
421011203211011
5303011421042
623043321301
73530546500
oct1105434505
9347770001
10152451397
1179066a9a
1243080231
1325779937
1416366137
15d5b5bb7
hex9163945

152451397 has 12 divisors (see below), whose sum is σ = 183063936. Its totient is φ = 126456120.

The previous prime is 152451391. The next prime is 152451401. The reversal of 152451397 is 793154251.

It is not a de Polignac number, because 152451397 - 23 = 152451389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152451391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48663 + ... + 51700.

It is an arithmetic number, because the mean of its divisors is an integer number (15255328).

Almost surely, 2152451397 is an apocalyptic number.

It is an amenable number.

152451397 is a deficient number, since it is larger than the sum of its proper divisors (30612539).

152451397 is a wasteful number, since it uses less digits than its factorization.

152451397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100408 (or 100401 counting only the distinct ones).

The product of its digits is 37800, while the sum is 37.

The square root of 152451397 is about 12347.1210004600. The cubic root of 152451397 is about 534.2081008464.

The spelling of 152451397 in words is "one hundred fifty-two million, four hundred fifty-one thousand, three hundred ninety-seven".

Divisors: 1 7 31 49 217 1519 100363 702541 3111253 4917787 21778771 152451397