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12979288 = 237415653
BaseRepresentation
bin110001100000…
…110001011000
3220102102020101
4301200301120
511310314123
61142105144
7215215330
oct61406130
926372211
1012979288
117365593
12441b1b4
1328c596a
141a1c0c0
151215aad
hexc60c58

12979288 has 32 divisors (see below), whose sum is σ = 28496160. Its totient is φ = 5425920.

The previous prime is 12979283. The next prime is 12979289. The reversal of 12979288 is 88297921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12979283) 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, 531 + ... + 5122.

It is an arithmetic number, because the mean of its divisors is an integer number (890505).

Almost surely, 212979288 is an apocalyptic number.

It is an amenable number.

12979288 is an abundant number, since it is smaller than the sum of its proper divisors (15516872).

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

12979288 is a wasteful number, since it uses less digits than its factorization.

12979288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5707 (or 5703 counting only the distinct ones).

The product of its digits is 145152, while the sum is 46.

The square root of 12979288 is about 3602.6778929013. The cubic root of 12979288 is about 235.0085284365.

It can be divided in two parts, 1297 and 9288, that added together give a triangular number (10585 = T145).

The spelling of 12979288 in words is "twelve million, nine hundred seventy-nine thousand, two hundred eighty-eight".

Divisors: 1 2 4 7 8 14 28 41 56 82 164 287 328 574 1148 2296 5653 11306 22612 39571 45224 79142 158284 231773 316568 463546 927092 1622411 1854184 3244822 6489644 12979288