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131250004 = 2236439007
BaseRepresentation
bin1111101001010…
…11011101010100
3100010222012011021
413310223131110
5232100000004
621005050524
73152415034
oct764533524
9303865137
10131250004
11680a6086
1237b56a44
1321265732
14136078c4
15b7c8d54
hex7d2b754

131250004 has 12 divisors (see below), whose sum is σ = 229776064. Its totient is φ = 65599704.

The previous prime is 131249999. The next prime is 131250011. The reversal of 131250004 is 400052131.

It is a self number, because there is not a number n which added to its sum of digits gives 131250004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10069 + ... + 19075.

Almost surely, 2131250004 is an apocalyptic number.

It is an amenable number.

131250004 is a deficient number, since it is larger than the sum of its proper divisors (98526060).

131250004 is a wasteful number, since it uses less digits than its factorization.

131250004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12654 (or 12652 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 131250004 is about 11456.4394119639. The cubic root of 131250004 is about 508.1981835701.

The spelling of 131250004 in words is "one hundred thirty-one million, two hundred fifty thousand, four".

Divisors: 1 2 4 3643 7286 9007 14572 18014 36028 32812501 65625002 131250004