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152054431 = 311488921
BaseRepresentation
bin10010001000000…
…10101010011111
3101121010011110121
421010002222133
5302411220211
623031015411
73524304244
oct1104025237
9347104417
10152054431
1178915821
1242b0a567
132566b049
14162a15cb
15d538271
hex9102a9f

152054431 has 4 divisors (see below), whose sum is σ = 152543664. Its totient is φ = 151565200.

The previous prime is 152054417. The next prime is 152054521. The reversal of 152054431 is 134450251.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 152054431 - 27 = 152054303 is a prime.

It is a super-2 number, since 2×1520544312 = 46241099973467522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 152054396 and 152054405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152054531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 244150 + ... + 244771.

It is an arithmetic number, because the mean of its divisors is an integer number (38135916).

Almost surely, 2152054431 is an apocalyptic number.

152054431 is a deficient number, since it is larger than the sum of its proper divisors (489233).

152054431 is an equidigital number, since it uses as much as digits as its factorization.

152054431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489232.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 152054431 is about 12331.0352768938. The cubic root of 152054431 is about 533.7440255498.

The spelling of 152054431 in words is "one hundred fifty-two million, fifty-four thousand, four hundred thirty-one".

Divisors: 1 311 488921 152054431