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12869899 = 72262651
BaseRepresentation
bin110001000110…
…000100001011
3220012212011221
4301012010023
511243314044
61135502511
7214251400
oct61060413
926185157
1012869899
1172a0389
124387a37
132887c33
1419d02a7
1511e3484
hexc4610b

12869899 has 6 divisors (see below), whose sum is σ = 14971164. Its totient is φ = 11031300.

The previous prime is 12869893. The next prime is 12869933. The reversal of 12869899 is 99896821.

It is not a de Polignac number, because 12869899 - 23 = 12869891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12869891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131277 + ... + 131374.

It is an arithmetic number, because the mean of its divisors is an integer number (2495194).

Almost surely, 212869899 is an apocalyptic number.

12869899 is a deficient number, since it is larger than the sum of its proper divisors (2101265).

12869899 is an equidigital number, since it uses as much as digits as its factorization.

12869899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262665 (or 262658 counting only the distinct ones).

The product of its digits is 559872, while the sum is 52.

The square root of 12869899 is about 3587.4641461623. The cubic root of 12869899 is about 234.3464503061.

The spelling of 12869899 in words is "twelve million, eight hundred sixty-nine thousand, eight hundred ninety-nine".

Divisors: 1 7 49 262651 1838557 12869899