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12670439851 = 29619970481
BaseRepresentation
bin10111100110011011…
…11001000110101011
31012201000200000221001
423303031321012223
5201422113033401
65453135255431
7625661650606
oct136315710653
935630600831
1012670439851
115412150aa3
12255737a577
13126c0241b4
14882a9d33d
154e2554601
hex2f33791ab

12670439851 has 8 divisors (see below), whose sum is σ = 13109652000. Its totient is φ = 12231381120.

The previous prime is 12670439849. The next prime is 12670439911. The reversal of 12670439851 is 15893407621.

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 12670439851 - 21 = 12670439849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12670439651) 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, 144531 + ... + 215011.

It is an arithmetic number, because the mean of its divisors is an integer number (1638706500).

It is a 1-persistent number, because it is pandigital, but 2⋅12670439851 = 25340879702 is not.

Almost surely, 212670439851 is an apocalyptic number.

12670439851 is a deficient number, since it is larger than the sum of its proper divisors (439212149).

12670439851 is an equidigital number, since it uses as much as digits as its factorization.

12670439851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76709.

The product of its (nonzero) digits is 362880, while the sum is 46.

The spelling of 12670439851 in words is "twelve billion, six hundred seventy million, four hundred thirty-nine thousand, eight hundred fifty-one".

Divisors: 1 29 6199 70481 179771 2043949 436911719 12670439851