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12962880 = 263257643
BaseRepresentation
bin110001011100…
…110001000000
3220101120201200
4301130301000
511304303010
61141501200
7215116440
oct61346100
926346650
1012962880
117354227
124411800
1328bb358
141a16120
151210cc0
hexc5cc40

12962880 has 168 divisors, whose sum is σ = 51035712. Its totient is φ = 2958336.

The previous prime is 12962863. The next prime is 12962893. The reversal of 12962880 is 8826921.

12962880 is a `hidden beast` number, since 1 + 29 + 628 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

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

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, 19839 + ... + 20481.

It is an arithmetic number, because the mean of its divisors is an integer number (303784).

Almost surely, 212962880 is an apocalyptic number.

12962880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12962880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25517856).

12962880 is an abundant number, since it is smaller than the sum of its proper divisors (38072832).

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

12962880 is a wasteful number, since it uses less digits than its factorization.

12962880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673 (or 660 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 12962880 is about 3600.3999777802. The cubic root of 12962880 is about 234.9094565932.

The spelling of 12962880 in words is "twelve million, nine hundred sixty-two thousand, eight hundred eighty".