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131431010 = 25312931447
BaseRepresentation
bin1111101010101…
…11101001100010
3100011022101110012
413311113221202
5232121243020
621013004522
73154100534
oct765275142
9304271405
10131431010
116820a077
1238023742
13212c9c39
1413653854
15b8127c5
hex7d57a62

131431010 has 32 divisors (see below), whose sum is σ = 245210112. Its totient is φ = 50667840.

The previous prime is 131430991. The next prime is 131431031. The reversal of 131431010 is 10134131.

It is a super-2 number, since 2×1314310102 = 34548220779240200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90107 + ... + 91553.

It is an arithmetic number, because the mean of its divisors is an integer number (7662816).

Almost surely, 2131431010 is an apocalyptic number.

131431010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131431010 is a deficient number, since it is larger than the sum of its proper divisors (113779102).

131431010 is a wasteful number, since it uses less digits than its factorization.

131431010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 131431010 is about 11464.3364395852. The cubic root of 131431010 is about 508.4316938273.

Adding to 131431010 its reverse (10134131), we get a palindrome (141565141).

The spelling of 131431010 in words is "one hundred thirty-one million, four hundred thirty-one thousand, ten".

Divisors: 1 2 5 10 31 62 155 293 310 586 1447 1465 2894 2930 7235 9083 14470 18166 44857 45415 89714 90830 224285 423971 448570 847942 2119855 4239710 13143101 26286202 65715505 131431010