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12304768 = 27731443
BaseRepresentation
bin101110111100…
…000110000000
3212011010222011
4232330012000
511122223033
61115422304
7206405650
oct56740600
925133864
1012304768
116a44833
124154994
13271a938
1418c4360
151130ccd
hexbbc180

12304768 has 64 divisors (see below), whose sum is σ = 28984320. Its totient is φ = 5091840.

The previous prime is 12304763. The next prime is 12304771. The reversal of 12304768 is 86740321.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12304763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27555 + ... + 27997.

It is an arithmetic number, because the mean of its divisors is an integer number (452880).

Almost surely, 212304768 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 12304768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14492160).

12304768 is an abundant number, since it is smaller than the sum of its proper divisors (16679552).

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

12304768 is an equidigital number, since it uses as much as digits as its factorization.

12304768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 12304768 is about 3507.8152744978. The cubic root of 12304768 is about 230.8648472602.

The spelling of 12304768 in words is "twelve million, three hundred four thousand, seven hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 31 32 56 62 64 112 124 128 217 224 248 434 443 448 496 868 886 896 992 1736 1772 1984 3101 3472 3544 3968 6202 6944 7088 12404 13733 13888 14176 24808 27466 27776 28352 49616 54932 56704 96131 99232 109864 192262 198464 219728 384524 396928 439456 769048 878912 1538096 1757824 3076192 6152384 12304768