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12739884 = 22323311489
BaseRepresentation
bin110000100110…
…010100101100
3212222020211120
4300212110230
511230134014
61133020540
7213200343
oct60462454
925866746
1012739884
117211733
124324750
1328409c1
141998b5a
1511b9ba9
hexc2652c

12739884 has 48 divisors (see below), whose sum is σ = 32040960. Its totient is φ = 3928320.

The previous prime is 12739879. The next prime is 12739897. The reversal of 12739884 is 48893721.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7812 + ... + 9300.

It is an arithmetic number, because the mean of its divisors is an integer number (667520).

Almost surely, 212739884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12739884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16020480).

12739884 is an abundant number, since it is smaller than the sum of its proper divisors (19301076).

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

12739884 is a wasteful number, since it uses less digits than its factorization.

12739884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550 (or 1548 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 12739884 is about 3569.2974098553. The cubic root of 12739884 is about 233.5546353940.

The spelling of 12739884 in words is "twelve million, seven hundred thirty-nine thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 12 23 31 46 62 69 92 93 124 138 186 276 372 713 1426 1489 2139 2852 2978 4278 4467 5956 8556 8934 17868 34247 46159 68494 92318 102741 136988 138477 184636 205482 276954 410964 553908 1061657 2123314 3184971 4246628 6369942 12739884