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12793992 = 2331928057
BaseRepresentation
bin110000110011…
…100010001000
3220002000001120
4300303202020
511233401432
61134115240
7213514161
oct60634210
926060046
1012793992
117249352
12434bb20
13285c513
1419b0768
1511cac2c
hexc33888

12793992 has 32 divisors (see below), whose sum is σ = 33669600. Its totient is φ = 4040064.

The previous prime is 12793981. The next prime is 12793993. The reversal of 12793992 is 29939721.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12793993) 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, 13573 + ... + 14484.

It is an arithmetic number, because the mean of its divisors is an integer number (1052175).

Almost surely, 212793992 is an apocalyptic number.

12793992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12793992 is an abundant number, since it is smaller than the sum of its proper divisors (20875608).

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

12793992 is a wasteful number, since it uses less digits than its factorization.

12793992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28085 (or 28081 counting only the distinct ones).

The product of its digits is 61236, while the sum is 42.

The square root of 12793992 is about 3576.8690219241. The cubic root of 12793992 is about 233.8848143740.

The spelling of 12793992 in words is "twelve million, seven hundred ninety-three thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 28057 56114 84171 112228 168342 224456 336684 533083 673368 1066166 1599249 2132332 3198498 4264664 6396996 12793992