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12302131209 = 317298317871
BaseRepresentation
bin10110111010100001…
…11010000000001001
31011202100122000110020
423131100322000021
5200143321144314
65352421211053
7613600250514
oct133520720011
934670560406
1012302131209
115243261295
122473b60a89
13121092a6a4
14849bc7d7b
154c0050da9
hex2dd43a009

12302131209 has 16 divisors (see below), whose sum is σ = 17966603520. Its totient is φ = 7452811520.

The previous prime is 12302131159. The next prime is 12302131249. The reversal of 12302131209 is 90213120321.

It is a cyclic number.

It is not a de Polignac number, because 12302131209 - 219 = 12301606921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12302131249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4157457 + ... + 4160414.

It is an arithmetic number, because the mean of its divisors is an integer number (1122912720).

Almost surely, 212302131209 is an apocalyptic number.

It is an amenable number.

12302131209 is a deficient number, since it is larger than the sum of its proper divisors (5664472311).

12302131209 is a wasteful number, since it uses less digits than its factorization.

12302131209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8317920.

The product of its (nonzero) digits is 648, while the sum is 24.

The spelling of 12302131209 in words is "twelve billion, three hundred two million, one hundred thirty-one thousand, two hundred nine".

Divisors: 1 3 17 29 51 87 493 1479 8317871 24953613 141403807 241218259 424211421 723654777 4100710403 12302131209