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131120776 = 2316390097
BaseRepresentation
bin1111101000010…
…11111010001000
3100010201121220001
413310023322020
5232031331101
621002212344
73151336213
oct764137210
9303647801
10131120776
1168017a86
1237ab40b4
132121b977
14135b277a
15b7a0901
hex7d0be88

131120776 has 8 divisors (see below), whose sum is σ = 245851470. Its totient is φ = 65560384.

The previous prime is 131120749. The next prime is 131120831. The reversal of 131120776 is 677021131.

It can be written as a sum of positive squares in only one way, i.e., 121572676 + 9548100 = 11026^2 + 3090^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8195041 + ... + 8195056.

Almost surely, 2131120776 is an apocalyptic number.

It is an amenable number.

131120776 is a deficient number, since it is larger than the sum of its proper divisors (114730694).

131120776 is a wasteful number, since it uses less digits than its factorization.

131120776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16390103 (or 16390099 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 131120776 is about 11450.7980507910. The cubic root of 131120776 is about 508.0313391293.

The spelling of 131120776 in words is "one hundred thirty-one million, one hundred twenty thousand, seven hundred seventy-six".

Divisors: 1 2 4 8 16390097 32780194 65560388 131120776