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12317792 = 251722643
BaseRepresentation
bin101110111111…
…010001100000
3212011210211112
4232333101200
511123132132
61120002452
7206461634
oct56772140
925153745
1012317792
116a535a3
124160428
132723846
1418c8dc4
151134ab2
hexbbf460

12317792 has 24 divisors (see below), whose sum is σ = 25678296. Its totient is φ = 5796352.

The previous prime is 12317771. The next prime is 12317797. The reversal of 12317792 is 29771321.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12317797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10778 + ... + 11865.

It is an arithmetic number, because the mean of its divisors is an integer number (1069929).

Almost surely, 212317792 is an apocalyptic number.

It is an amenable number.

12317792 is an abundant number, since it is smaller than the sum of its proper divisors (13360504).

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

12317792 is a wasteful number, since it uses less digits than its factorization.

12317792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22670 (or 22662 counting only the distinct ones).

The product of its digits is 5292, while the sum is 32.

The square root of 12317792 is about 3509.6712096719. The cubic root of 12317792 is about 230.9462716194.

The spelling of 12317792 in words is "twelve million, three hundred seventeen thousand, seven hundred ninety-two".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 544 22643 45286 90572 181144 362288 384931 724576 769862 1539724 3079448 6158896 12317792