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12070037321 = 73165342977
BaseRepresentation
bin10110011110110111…
…00010011101001001
31011011011220102111022
423033123202131021
5144204412143241
65313410442225
7605051424116
oct131733423511
934134812438
1012070037321
115134248761
12240a293375
1311a4817324
1482704d90d
154a99a754b
hex2cf6e2749

12070037321 has 4 divisors (see below), whose sum is σ = 12235380372. Its totient is φ = 11904694272.

The previous prime is 12070037311. The next prime is 12070037323. The reversal of 12070037321 is 12373007021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7888992400 + 4181044921 = 88820^2 + 64661^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12070037321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12070037323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82671416 + ... + 82671561.

It is an arithmetic number, because the mean of its divisors is an integer number (3058845093).

Almost surely, 212070037321 is an apocalyptic number.

It is an amenable number.

12070037321 is a deficient number, since it is larger than the sum of its proper divisors (165343051).

12070037321 is an equidigital number, since it uses as much as digits as its factorization.

12070037321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165343050.

The product of its (nonzero) digits is 1764, while the sum is 26.

The spelling of 12070037321 in words is "twelve billion, seventy million, thirty-seven thousand, three hundred twenty-one".

Divisors: 1 73 165342977 12070037321