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131660734 = 2166939443
BaseRepresentation
bin1111101100011…
…11101110111110
3100011202001120111
413312033232332
5232201120414
621021540234
73156045352
oct766175676
9304661514
10131660734
1168356727
123811467a
132137a67a
14136b3462
15b85a8c4
hex7d8fbbe

131660734 has 8 divisors (see below), whose sum is σ = 197614440. Its totient is φ = 65789256.

The previous prime is 131660723. The next prime is 131660777. The reversal of 131660734 is 437066131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 131660696 and 131660705.

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, 16384 + ... + 23059.

It is an arithmetic number, because the mean of its divisors is an integer number (24701805).

Almost surely, 2131660734 is an apocalyptic number.

131660734 is a deficient number, since it is larger than the sum of its proper divisors (65953706).

131660734 is a wasteful number, since it uses less digits than its factorization.

131660734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41114.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 131660734 is about 11474.3511363388. The cubic root of 131660734 is about 508.7277451644.

The spelling of 131660734 in words is "one hundred thirty-one million, six hundred sixty thousand, seven hundred thirty-four".

Divisors: 1 2 1669 3338 39443 78886 65830367 131660734