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12372972 = 2231031081
BaseRepresentation
bin101111001100…
…101111101100
3212021121112020
4233030233230
511131413342
61121110140
7210111543
oct57145754
925247466
1012372972
116a90aa7
124188350
1327429b1
14190115a
1511460ec
hexbccbec

12372972 has 12 divisors (see below), whose sum is σ = 28870296. Its totient is φ = 4124320.

The previous prime is 12372967. The next prime is 12372973. The reversal of 12372972 is 27927321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×123729722 = 306180872225568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12372973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 515529 + ... + 515552.

It is an arithmetic number, because the mean of its divisors is an integer number (2405858).

Almost surely, 212372972 is an apocalyptic number.

12372972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12372972 is an abundant number, since it is smaller than the sum of its proper divisors (16497324).

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

12372972 is a wasteful number, since it uses less digits than its factorization.

12372972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031088 (or 1031086 counting only the distinct ones).

The product of its digits is 10584, while the sum is 33.

The square root of 12372972 is about 3517.5235606887. The cubic root of 12372972 is about 231.2906145368.

The spelling of 12372972 in words is "twelve million, three hundred seventy-two thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 1031081 2062162 3093243 4124324 6186486 12372972