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12609335245 = 513193989773
BaseRepresentation
bin10111011111001001…
…10010111111001101
31012112202200121011111
423233210302333031
5201310442211440
65443113452021
7624320403223
oct135744627715
935482617144
1012609335245
115390706221
12253aa11011
13125c47b520
14878914b13
154dbed44ea
hex2ef932fcd

12609335245 has 8 divisors (see below), whose sum is σ = 16295141016. Its totient is φ = 9311509056.

The previous prime is 12609335197. The next prime is 12609335269. The reversal of 12609335245 is 54253390621.

It can be written as a sum of positive squares in 4 ways, for example, as 66564 + 12609268681 = 258^2 + 112291^2 .

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 12609335245 - 29 = 12609334733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12609335198 and 12609335207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96994822 + ... + 96994951.

It is an arithmetic number, because the mean of its divisors is an integer number (2036892627).

Almost surely, 212609335245 is an apocalyptic number.

It is an amenable number.

12609335245 is a deficient number, since it is larger than the sum of its proper divisors (3685805771).

12609335245 is a wasteful number, since it uses less digits than its factorization.

12609335245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193989791.

The product of its (nonzero) digits is 194400, while the sum is 40.

The spelling of 12609335245 in words is "twelve billion, six hundred nine million, three hundred thirty-five thousand, two hundred forty-five".

Divisors: 1 5 13 65 193989773 969948865 2521867049 12609335245