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12969272 = 237920521
BaseRepresentation
bin110001011110…
…010100111000
3220101220111102
4301132110320
511310004042
61141550532
7215144201
oct61362470
926356442
1012969272
117359008
124415448
1328c1234
141a185a8
151212b32
hexc5e538

12969272 has 16 divisors (see below), whose sum is σ = 24626400. Its totient is φ = 6402240.

The previous prime is 12969269. The next prime is 12969287. The reversal of 12969272 is 27296921.

12969272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9629 + ... + 10892.

It is an arithmetic number, because the mean of its divisors is an integer number (1539150).

Almost surely, 212969272 is an apocalyptic number.

It is an amenable number.

12969272 is a deficient number, since it is larger than the sum of its proper divisors (11657128).

12969272 is a wasteful number, since it uses less digits than its factorization.

12969272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20606 (or 20602 counting only the distinct ones).

The product of its digits is 27216, while the sum is 38.

The square root of 12969272 is about 3601.2875475307. The cubic root of 12969272 is about 234.9480615562.

The spelling of 12969272 in words is "twelve million, nine hundred sixty-nine thousand, two hundred seventy-two".

Divisors: 1 2 4 8 79 158 316 632 20521 41042 82084 164168 1621159 3242318 6484636 12969272