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12004345213 = 73131433617
BaseRepresentation
bin10110010111000001…
…11100010101111101
31010222121021220212021
423023200330111331
5144041103021323
65303102440141
7603323152000
oct131340742575
933877256767
1012004345213
11510015a263
1223b0293051
131194026563
1481c42d537
154a3d2d05d
hex2cb83c57d

12004345213 has 32 divisors (see below), whose sum is σ = 14161593600. Its totient is φ = 10170800640.

The previous prime is 12004345207. The next prime is 12004345253. The reversal of 12004345213 is 31254340021.

It is a de Polignac number, because none of the positive numbers 2k-12004345213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12004345253) 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 31 ways as a sum of consecutive naturals, for example, 19455681 + ... + 19456297.

It is an arithmetic number, because the mean of its divisors is an integer number (442549800).

Almost surely, 212004345213 is an apocalyptic number.

It is an amenable number.

12004345213 is a deficient number, since it is larger than the sum of its proper divisors (2157248387).

12004345213 is an equidigital number, since it uses as much as digits as its factorization.

12004345213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202 (or 1188 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 12004345213 its reverse (31254340021), we get a palindrome (43258685234).

The spelling of 12004345213 in words is "twelve billion, four million, three hundred forty-five thousand, two hundred thirteen".

Divisors: 1 7 49 131 343 433 617 917 3031 4319 6419 21217 30233 44933 56723 80827 148519 211631 267161 397061 565789 1870127 2779427 3960523 13090889 19455989 27723661 34998091 91636223 244986637 1714906459 12004345213