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12699468 = 2232615783
BaseRepresentation
bin110000011100…
…011101001100
3212220012101200
4300130131030
511222340333
61132105500
7212641455
oct60343514
925805350
1012699468
117194331
124305290
1328284a2
14198812c
1511acc13
hexc1c74c

12699468 has 36 divisors (see below), whose sum is σ = 32633328. Its totient is φ = 4163040.

The previous prime is 12699461. The next prime is 12699469. The reversal of 12699468 is 86499621.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×126994682 = 322552974966048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12699461) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 696 + ... + 5087.

Almost surely, 212699468 is an apocalyptic number.

12699468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12699468 is an abundant number, since it is smaller than the sum of its proper divisors (19933860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12699468 is a wasteful number, since it uses less digits than its factorization.

12699468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5854 (or 5849 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 12699468 is about 3563.6312940595. The cubic root of 12699468 is about 233.3073975708.

The spelling of 12699468 in words is "twelve million, six hundred ninety-nine thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 61 122 183 244 366 549 732 1098 2196 5783 11566 17349 23132 34698 52047 69396 104094 208188 352763 705526 1058289 1411052 2116578 3174867 4233156 6349734 12699468