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152056231 = 677224603
BaseRepresentation
bin10010001000000…
…11000110100111
3101121010020221021
421010003012213
5302411244411
623031032011
73524312425
oct1104030647
9347106837
10152056231
1178917108
1242b0b607
132566bb02
14162a2115
15d538a71
hex91031a7

152056231 has 4 divisors (see below), whose sum is σ = 152281512. Its totient is φ = 151830952.

The previous prime is 152056189. The next prime is 152056241. The reversal of 152056231 is 132650251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132650251 = 193687307.

It is a cyclic number.

It is not a de Polignac number, because 152056231 - 211 = 152054183 is a prime.

It is a super-2 number, since 2×1520562312 = 46242194771850722, 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 = 152056196 and 152056205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152056241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111625 + ... + 112978.

It is an arithmetic number, because the mean of its divisors is an integer number (38070378).

Almost surely, 2152056231 is an apocalyptic number.

152056231 is a deficient number, since it is larger than the sum of its proper divisors (225281).

152056231 is an equidigital number, since it uses as much as digits as its factorization.

152056231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225280.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 152056231 is about 12331.1082632503. The cubic root of 152056231 is about 533.7461316716.

The spelling of 152056231 in words is "one hundred fifty-two million, fifty-six thousand, two hundred thirty-one".

Divisors: 1 677 224603 152056231