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12220751283 = 3131507320789
BaseRepresentation
bin10110110000110100…
…11101110110110011
31011112200111111011220
423120122131312303
5200012003020113
65340353040123
7611561446326
oct133032356663
934480444156
1012220751283
115201328354
122450856043
1311c9b061a0
1483d0827bd
154b7d28523
hex2d869ddb3

12220751283 has 16 divisors (see below), whose sum is σ = 17549753760. Its totient is φ = 7519601664.

The previous prime is 12220751267. The next prime is 12220751311. The reversal of 12220751283 is 38215702221.

It is not a de Polignac number, because 12220751283 - 24 = 12220751267 is a prime.

It is a super-2 number, since 2×122207512832 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12220752283) 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, 577453 + ... + 598241.

It is an arithmetic number, because the mean of its divisors is an integer number (1096859610).

Almost surely, 212220751283 is an apocalyptic number.

12220751283 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12220751283 is a deficient number, since it is larger than the sum of its proper divisors (5329002477).

12220751283 is a wasteful number, since it uses less digits than its factorization.

12220751283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35878.

The product of its (nonzero) digits is 13440, while the sum is 33.

The spelling of 12220751283 in words is "twelve billion, two hundred twenty million, seven hundred fifty-one thousand, two hundred eighty-three".

Divisors: 1 3 13 39 15073 20789 45219 62367 195949 270257 587847 810771 313352597 940057791 4073583761 12220751283