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12816997103 = 19765060899
BaseRepresentation
bin10111110111111001…
…11101101011101111
31020002020102220200102
423323330331223233
5202222122401403
65515452421315
7632421451331
oct137374755357
936066386612
1012816997103
115487951699
12259847783b
1312934b9071
1489832d451
15500353b88
hex2fbf3daef

12816997103 has 4 divisors (see below), whose sum is σ = 12882058200. Its totient is φ = 12751936008.

The previous prime is 12816997073. The next prime is 12816997111. The reversal of 12816997103 is 30179961821.

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

It is a cyclic number.

It is not a de Polignac number, because 12816997103 - 214 = 12816980719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12816990103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32530253 + ... + 32530646.

It is an arithmetic number, because the mean of its divisors is an integer number (3220514550).

Almost surely, 212816997103 is an apocalyptic number.

12816997103 is a deficient number, since it is larger than the sum of its proper divisors (65061097).

12816997103 is an equidigital number, since it uses as much as digits as its factorization.

12816997103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65061096.

The product of its (nonzero) digits is 163296, while the sum is 47.

The spelling of 12816997103 in words is "twelve billion, eight hundred sixteen million, nine hundred ninety-seven thousand, one hundred three".

Divisors: 1 197 65060899 12816997103