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131310004 = 227395707
BaseRepresentation
bin1111101001110…
…10000110110100
3100011002020110111
413310322012310
5232103410004
621010232404
73153055000
oct764720664
9304066414
10131310004
1168137171
1237b85704
1321286b37
1413621700
15b7dba04
hex7d3a1b4

131310004 has 24 divisors (see below), whose sum is σ = 267982400. Its totient is φ = 56275128.

The previous prime is 131309993. The next prime is 131310043. The reversal of 131310004 is 400013131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46482 + ... + 49225.

Almost surely, 2131310004 is an apocalyptic number.

131310004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131310004 is an abundant number, since it is smaller than the sum of its proper divisors (136672396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131310004 is an equidigital number, since it uses as much as digits as its factorization.

131310004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95732 (or 95716 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 131310004 is about 11459.0577274050. The cubic root of 131310004 is about 508.2756114936.

Adding to 131310004 its reverse (400013131), we get a palindrome (531323135).

The spelling of 131310004 in words is "one hundred thirty-one million, three hundred ten thousand, four".

Divisors: 1 2 4 7 14 28 49 98 196 343 686 1372 95707 191414 382828 669949 1339898 2679796 4689643 9379286 18758572 32827501 65655002 131310004