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12899914 = 243612459
BaseRepresentation
bin110001001101…
…011001001010
3220021101100121
4301031121022
511300244124
61140253454
7214435036
oct61153112
926241317
1012899914
117310995
1243a128a
1328987b1
1419db1c6
1511ec2e4
hexc4d64a

12899914 has 16 divisors (see below), whose sum is σ = 20132640. Its totient is φ = 6194160.

The previous prime is 12899899. The next prime is 12899951. The reversal of 12899914 is 41999821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4017 + ... + 6475.

It is an arithmetic number, because the mean of its divisors is an integer number (1258290).

Almost surely, 212899914 is an apocalyptic number.

12899914 is a deficient number, since it is larger than the sum of its proper divisors (7232726).

12899914 is a wasteful number, since it uses less digits than its factorization.

12899914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565.

The product of its digits is 46656, while the sum is 43.

The square root of 12899914 is about 3591.6450270036. The cubic root of 12899914 is about 234.5284887109.

The spelling of 12899914 in words is "twelve million, eight hundred ninety-nine thousand, nine hundred fourteen".

Divisors: 1 2 43 61 86 122 2459 2623 4918 5246 105737 149999 211474 299998 6449957 12899914