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13107947 = 31676311
BaseRepresentation
bin110010000000…
…001011101011
3220122221201112
4302000023223
511323423242
61144540535
7216262406
oct62001353
926587645
1013107947
117443216
12448174b
13293c3a8
141a52d3d
15123dc82
hexc802eb

13107947 has 8 divisors (see below), whose sum is σ = 13734912. Its totient is φ = 12493800.

The previous prime is 13107943. The next prime is 13107959. The reversal of 13107947 is 74970131.

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

It is a cyclic number.

It is not a de Polignac number, because 13107947 - 22 = 13107943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13107943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1079 + ... + 5232.

It is an arithmetic number, because the mean of its divisors is an integer number (1716864).

Almost surely, 213107947 is an apocalyptic number.

13107947 is a deficient number, since it is larger than the sum of its proper divisors (626965).

13107947 is an equidigital number, since it uses as much as digits as its factorization.

13107947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6409.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 13107947 is about 3620.4898839798. The cubic root of 13107947 is about 235.7824949482.

The spelling of 13107947 in words is "thirteen million, one hundred seven thousand, nine hundred forty-seven".

Divisors: 1 31 67 2077 6311 195641 422837 13107947