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131970516 = 22310997543
BaseRepresentation
bin1111101110110…
…11010111010100
3100012022210111220
413313123113110
5232241024031
621032330340
73161505456
oct767332724
9305283456
10131970516
1168548447
12382439b0
1321458682
14137542d6
15b8bc596
hex7ddb5d4

131970516 has 12 divisors (see below), whose sum is σ = 307931232. Its totient is φ = 43990168.

The previous prime is 131970499. The next prime is 131970547. The reversal of 131970516 is 615079131.

It is a happy number.

131970516 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

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, 5498760 + ... + 5498783.

It is an arithmetic number, because the mean of its divisors is an integer number (25660936).

Almost surely, 2131970516 is an apocalyptic number.

It is an amenable number.

131970516 is an abundant number, since it is smaller than the sum of its proper divisors (175960716).

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

131970516 is a wasteful number, since it uses less digits than its factorization.

131970516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10997550 (or 10997548 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 131970516 is about 11487.8420950151. The cubic root of 131970516 is about 509.1264245438.

The spelling of 131970516 in words is "one hundred thirty-one million, nine hundred seventy thousand, five hundred sixteen".

Divisors: 1 2 3 4 6 12 10997543 21995086 32992629 43990172 65985258 131970516