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12755280417 = 31128111531193
BaseRepresentation
bin10111110000100011…
…00010001000100001
31012220221022101022020
423320101202020201
5202110322433132
65505405532053
7631042044315
oct137021421041
935827271266
1012755280417
115456028a70
12257b874029
13128378a909
14890065b45
154e9c1252c
hex2f8462221

12755280417 has 32 divisors (see below), whose sum is σ = 18650929536. Its totient is φ = 7689830400.

The previous prime is 12755280413. The next prime is 12755280451. The reversal of 12755280417 is 71408255721.

It is not a de Polignac number, because 12755280417 - 22 = 12755280413 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12755280413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10691173 + ... + 10692365.

It is an arithmetic number, because the mean of its divisors is an integer number (582841548).

Almost surely, 212755280417 is an apocalyptic number.

It is an amenable number.

12755280417 is a deficient number, since it is larger than the sum of its proper divisors (5895649119).

12755280417 is a wasteful number, since it uses less digits than its factorization.

12755280417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641.

The product of its (nonzero) digits is 156800, while the sum is 42.

The spelling of 12755280417 in words is "twelve billion, seven hundred fifty-five million, two hundred eighty thousand, four hundred seventeen".

Divisors: 1 3 11 33 281 843 1153 1193 3091 3459 3579 9273 12683 13123 38049 39369 323993 335233 971979 1005699 1375529 3563923 3687563 4126587 10691769 11062689 15130819 45392457 386523649 1159570947 4251760139 12755280417