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12168864 = 2532293147
BaseRepresentation
bin101110011010…
…111010100000
3211220020112200
4232122322200
511103400424
61112453200
7205301511
oct56327240
924806480
1012168864
116961714
1240aa200
1326a0b16
14188aa08
1511058c9
hexb9aea0

12168864 has 144 divisors (see below), whose sum is σ = 37739520. Its totient is φ = 3709440.

The previous prime is 12168851. The next prime is 12168883. The reversal of 12168864 is 46886121.

12168864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 258889 + ... + 258935.

It is an arithmetic number, because the mean of its divisors is an integer number (262080).

Almost surely, 212168864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12168864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18869760).

12168864 is an abundant number, since it is smaller than the sum of its proper divisors (25570656).

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

12168864 is a wasteful number, since it uses less digits than its factorization.

12168864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 112 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 12168864 is about 3488.3898864662. The cubic root of 12168864 is about 230.0117448319.

The spelling of 12168864 in words is "twelve million, one hundred sixty-eight thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 29 31 32 36 47 48 58 62 72 87 93 94 96 116 124 141 144 174 186 188 232 248 261 279 282 288 348 372 376 423 464 496 522 558 564 696 744 752 846 899 928 992 1044 1116 1128 1363 1392 1457 1488 1504 1692 1798 2088 2232 2256 2697 2726 2784 2914 2976 3384 3596 4089 4176 4371 4464 4512 5394 5452 5828 6768 7192 8091 8178 8352 8742 8928 10788 10904 11656 12267 13113 13536 14384 16182 16356 17484 21576 21808 23312 24534 26226 28768 32364 32712 34968 42253 43152 43616 46624 49068 52452 64728 65424 69936 84506 86304 98136 104904 126759 129456 130848 139872 169012 196272 209808 253518 258912 338024 380277 392544 419616 507036 676048 760554 1014072 1352096 1521108 2028144 3042216 4056288 6084432 12168864