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131678674 = 2113582649
BaseRepresentation
bin1111101100101…
…00000111010010
3100011202222011221
413312110013102
5232202204144
621022155254
73156151561
oct766240722
9304688157
10131678674
1168369156
1238122b2a
132138589a
14136b9bd8
15b860d84
hex7d941d2

131678674 has 8 divisors (see below), whose sum is σ = 199266300. Its totient is φ = 65256576.

The previous prime is 131678663. The next prime is 131678713. The reversal of 131678674 is 476876131.

It can be written as a sum of positive squares in 2 ways, for example, as 114811225 + 16867449 = 10715^2 + 4107^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 131678674.

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, 291099 + ... + 291550.

Almost surely, 2131678674 is an apocalyptic number.

131678674 is a deficient number, since it is larger than the sum of its proper divisors (67587626).

131678674 is a wasteful number, since it uses less digits than its factorization.

131678674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582764.

The product of its digits is 169344, while the sum is 43.

The square root of 131678674 is about 11475.1328532614. The cubic root of 131678674 is about 508.7508504112.

The spelling of 131678674 in words is "one hundred thirty-one million, six hundred seventy-eight thousand, six hundred seventy-four".

Divisors: 1 2 113 226 582649 1165298 65839337 131678674