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12856752103 = 1391921171
BaseRepresentation
bin10111111100101001…
…00111011111100111
31020012000020200021211
423332110213133213
5202312312031403
65523432452251
7633413406166
oct137624473747
936160220254
1012856752103
1154a8335168
1225a984a087
13129b7c8230
1489d71b3dd
15503aa806d
hex2fe5277e7

12856752103 has 12 divisors (see below), whose sum is σ = 13872652248. Its totient is φ = 11844733680.

The previous prime is 12856752023. The next prime is 12856752133. The reversal of 12856752103 is 30125765821.

It is not a de Polignac number, because 12856752103 - 29 = 12856751591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12856752133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10978708 + ... + 10979878.

It is an arithmetic number, because the mean of its divisors is an integer number (1156054354).

Almost surely, 212856752103 is an apocalyptic number.

12856752103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12856752103 is a deficient number, since it is larger than the sum of its proper divisors (1015900145).

12856752103 is an frugal number, since it uses more digits than its factorization.

12856752103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022 (or 2103 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 12856752103 in words is "twelve billion, eight hundred fifty-six million, seven hundred fifty-two thousand, one hundred three".

Divisors: 1 13 919 1171 11947 15223 844561 1076149 10979293 13989937 988980931 12856752103