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131456234 = 2713722287
BaseRepresentation
bin1111101010111…
…01110011101010
3100011100200001102
413311131303222
5232123044414
621013321402
73154234220
oct765356352
9304320042
10131456234
1168227018
1238036262
1321308570
141365cb10
15b819ede
hex7d5dcea

131456234 has 16 divisors (see below), whose sum is σ = 242688768. Its totient is φ = 52004592.

The previous prime is 131456233. The next prime is 131456249. The reversal of 131456234 is 432654131.

It is a junction number, because it is equal to n+sod(n) for n = 131456197 and 131456206.

It is not an unprimeable number, because it can be changed into a prime (131456233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360962 + ... + 361325.

It is an arithmetic number, because the mean of its divisors is an integer number (15168048).

Almost surely, 2131456234 is an apocalyptic number.

131456234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

131456234 is a deficient number, since it is larger than the sum of its proper divisors (111232534).

131456234 is a wasteful number, since it uses less digits than its factorization.

131456234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722309.

The product of its digits is 8640, while the sum is 29.

The square root of 131456234 is about 11465.4364940895. The cubic root of 131456234 is about 508.4642175083.

The spelling of 131456234 in words is "one hundred thirty-one million, four hundred fifty-six thousand, two hundred thirty-four".

Divisors: 1 2 7 13 14 26 91 182 722287 1444574 5056009 9389731 10112018 18779462 65728117 131456234