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12855948 = 2237314937
BaseRepresentation
bin110001000010…
…101010001100
3220012011001020
4301002222030
511242342243
61135314140
7214162620
oct61025214
926164036
1012855948
117290956
12437b950
132881791
1419c9180
1511de283
hexc42a8c

12855948 has 48 divisors (see below), whose sum is σ = 35395584. Its totient is φ = 3553920.

The previous prime is 12855937. The next prime is 12855967. The reversal of 12855948 is 84955821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136 + ... + 5072.

It is an arithmetic number, because the mean of its divisors is an integer number (737408).

Almost surely, 212855948 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 12855948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17697792).

12855948 is an abundant number, since it is smaller than the sum of its proper divisors (22539636).

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

12855948 is a wasteful number, since it uses less digits than its factorization.

12855948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4982 (or 4980 counting only the distinct ones).

The product of its digits is 115200, while the sum is 42.

The square root of 12855948 is about 3585.5192092638. The cubic root of 12855948 is about 234.2617423279.

The spelling of 12855948 in words is "twelve million, eight hundred fifty-five thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 31 42 62 84 93 124 186 217 372 434 651 868 1302 2604 4937 9874 14811 19748 29622 34559 59244 69118 103677 138236 153047 207354 306094 414708 459141 612188 918282 1071329 1836564 2142658 3213987 4285316 6427974 12855948