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130634312 = 2316329289
BaseRepresentation
bin1111100100101…
…01001001001000
3100002210220120212
413302111021020
5231420244222
620543540252
73144242024
oct762251110
9302726525
10130634312
1167815546
12378ba688
13210ab413
14134c7384
15b7066e2
hex7c95248

130634312 has 8 divisors (see below), whose sum is σ = 244939350. Its totient is φ = 65317152.

The previous prime is 130634311. The next prime is 130634327. The reversal of 130634312 is 213436031.

It can be written as a sum of positive squares in only one way, i.e., 81830116 + 48804196 = 9046^2 + 6986^2 .

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

It is not an unprimeable number, because it can be changed into a prime (130634311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8164637 + ... + 8164652.

Almost surely, 2130634312 is an apocalyptic number.

It is an amenable number.

130634312 is a deficient number, since it is larger than the sum of its proper divisors (114305038).

130634312 is a wasteful number, since it uses less digits than its factorization.

130634312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16329295 (or 16329291 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 130634312 is about 11429.5368235113. The cubic root of 130634312 is about 507.4022874802.

The spelling of 130634312 in words is "one hundred thirty million, six hundred thirty-four thousand, three hundred twelve".

Divisors: 1 2 4 8 16329289 32658578 65317156 130634312