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131068668 = 22310922389
BaseRepresentation
bin1111100111111…
…11001011111100
3100010121222102010
413303333023330
5232023144133
621001131220
73151031253
oct763771374
9303558363
10131068668
1167a91915
1237a89b10
1321201033
141359b79a
15b790263
hex7cff2fc

131068668 has 12 divisors (see below), whose sum is σ = 305826920. Its totient is φ = 43689552.

The previous prime is 131068607. The next prime is 131068681. The reversal of 131068668 is 866860131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 5461183 + ... + 5461206.

Almost surely, 2131068668 is an apocalyptic number.

It is an amenable number.

131068668 is an abundant number, since it is smaller than the sum of its proper divisors (174758252).

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

131068668 is a wasteful number, since it uses less digits than its factorization.

131068668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10922396 (or 10922394 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 131068668 is about 11448.5225247627. The cubic root of 131068668 is about 507.9640322148.

The spelling of 131068668 in words is "one hundred thirty-one million, sixty-eight thousand, six hundred sixty-eight".

Divisors: 1 2 3 4 6 12 10922389 21844778 32767167 43689556 65534334 131068668