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12959712 = 2532172647
BaseRepresentation
bin110001011011…
…111111100000
3220101102101100
4301123333200
511304202322
61141434400
7215104263
oct61337740
926342340
1012959712
117351907
12440ba00
1328b9a8c
141a14cda
15120edac
hexc5bfe0

12959712 has 72 divisors (see below), whose sum is σ = 39036816. Its totient is φ = 4064256.

The previous prime is 12959677. The next prime is 12959753. The reversal of 12959712 is 21795921.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3573 + ... + 6219.

It is an arithmetic number, because the mean of its divisors is an integer number (542178).

Almost surely, 212959712 is an apocalyptic number.

12959712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12959712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19518408).

12959712 is an abundant number, since it is smaller than the sum of its proper divisors (26077104).

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

12959712 is a wasteful number, since it uses less digits than its factorization.

12959712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680 (or 2669 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 12959712 is about 3599.9599997778. The cubic root of 12959712 is about 234.8903185161.

The spelling of 12959712 in words is "twelve million, nine hundred fifty-nine thousand, seven hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 17 18 24 32 34 36 48 51 68 72 96 102 136 144 153 204 272 288 306 408 544 612 816 1224 1632 2448 2647 4896 5294 7941 10588 15882 21176 23823 31764 42352 44999 47646 63528 84704 89998 95292 127056 134997 179996 190584 254112 269994 359992 381168 404991 539988 719984 762336 809982 1079976 1439968 1619964 2159952 3239928 4319904 6479856 12959712