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12480864 = 2531153223
BaseRepresentation
bin101111100111…
…000101100000
3212111002112020
4233213011200
511143341424
61123301440
7211041234
oct57470540
925432466
1012480864
117055070
12421a880
13277cb36
14192c5c4
151168079
hexbe7160

12480864 has 96 divisors (see below), whose sum is σ = 36578304. Its totient is φ = 3694080.

The previous prime is 12480863. The next prime is 12480887. The reversal of 12480864 is 46808421.

12480864 is digitally balanced in base 2 and base 4, because in such bases 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 (96).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12480863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55857 + ... + 56079.

It is an arithmetic number, because the mean of its divisors is an integer number (381024).

Almost surely, 212480864 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 12480864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18289152).

12480864 is an abundant number, since it is smaller than the sum of its proper divisors (24097440).

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

12480864 is a wasteful number, since it uses less digits than its factorization.

12480864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 292 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 12480864 is about 3532.8266303344. The cubic root of 12480864 is about 231.9609526040.

The spelling of 12480864 in words is "twelve million, four hundred eighty thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 53 66 88 96 106 132 159 176 212 223 264 318 352 424 446 528 583 636 669 848 892 1056 1166 1272 1338 1696 1749 1784 2332 2453 2544 2676 3498 3568 4664 4906 5088 5352 6996 7136 7359 9328 9812 10704 11819 13992 14718 18656 19624 21408 23638 27984 29436 35457 39248 47276 55968 58872 70914 78496 94552 117744 130009 141828 189104 235488 260018 283656 378208 390027 520036 567312 780054 1040072 1134624 1560108 2080144 3120216 4160288 6240432 12480864