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12157036 = 221928419
BaseRepresentation
bin101110011000…
…000001101100
3211212122022121
4232120001230
511103011121
61112322324
7205222153
oct56300154
924778277
1012157036
116953841
1240a33a4
132698618
14188659a
151102141
hexb9806c

12157036 has 18 divisors (see below), whose sum is σ = 22456140. Its totient is φ = 5757912.

The previous prime is 12157027. The next prime is 12157037. The reversal of 12157036 is 63075121.

It is a self number, because there is not a number n which added to its sum of digits gives 12157036.

It is not an unprimeable number, because it can be changed into a prime (12157037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2766 + ... + 5653.

Almost surely, 212157036 is an apocalyptic number.

It is an amenable number.

12157036 is a deficient number, since it is larger than the sum of its proper divisors (10299104).

12157036 is a wasteful number, since it uses less digits than its factorization.

12157036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8461 (or 8440 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 12157036 is about 3486.6941362844. The cubic root of 12157036 is about 229.9371977240.

The spelling of 12157036 in words is "twelve million, one hundred fifty-seven thousand, thirty-six".

Divisors: 1 2 4 19 38 76 361 722 1444 8419 16838 33676 159961 319922 639844 3039259 6078518 12157036