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131426554 = 2723431947
BaseRepresentation
bin1111101010101…
…10100011111010
3100011022011100011
413311112203322
5232121122204
621012532134
73154051540
oct765264372
9304264304
10131426554
1168206796
123802104a
13212c7bbc
1413651d90
15b811304
hex7d568fa

131426554 has 32 divisors (see below), whose sum is σ = 235892736. Its totient is φ = 53694960.

The previous prime is 131426551. The next prime is 131426563. The reversal of 131426554 is 455624131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (131426551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138309 + ... + 139255.

It is an arithmetic number, because the mean of its divisors is an integer number (7371648).

Almost surely, 2131426554 is an apocalyptic number.

131426554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

131426554 is a deficient number, since it is larger than the sum of its proper divisors (104466182).

131426554 is a wasteful number, since it uses less digits than its factorization.

131426554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410.

The product of its digits is 14400, while the sum is 31.

The square root of 131426554 is about 11464.1420961187. The cubic root of 131426554 is about 508.4259478540.

The spelling of 131426554 in words is "one hundred thirty-one million, four hundred twenty-six thousand, five hundred fifty-four".

Divisors: 1 2 7 14 23 46 161 322 431 862 947 1894 3017 6034 6629 9913 13258 19826 21781 43562 69391 138782 152467 304934 408157 816314 2857099 5714198 9387611 18775222 65713277 131426554