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12898560 = 28353359
BaseRepresentation
bin110001001101…
…000100000000
3220021022111110
4301031010000
511300223220
61140243320
7214431063
oct61150400
926238443
1012898560
11730a974
1243a0540
132897cac
1419da8da
1511ebbe0
hexc4d100

12898560 has 72 divisors (see below), whose sum is σ = 41207040. Its totient is φ = 3438592.

The previous prime is 12898553. The next prime is 12898619. The reversal of 12898560 is 6589821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2161 + ... + 5519.

It is an arithmetic number, because the mean of its divisors is an integer number (572320).

Almost surely, 212898560 is an apocalyptic number.

12898560 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 12898560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20603520).

12898560 is an abundant number, since it is smaller than the sum of its proper divisors (28308480).

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

12898560 is an equidigital number, since it uses as much as digits as its factorization.

12898560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3383 (or 3369 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 12898560 is about 3591.4565290422. The cubic root of 12898560 is about 234.5202829021.

The spelling of 12898560 in words is "twelve million, eight hundred ninety-eight thousand, five hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 128 160 192 240 256 320 384 480 640 768 960 1280 1920 3359 3840 6718 10077 13436 16795 20154 26872 33590 40308 50385 53744 67180 80616 100770 107488 134360 161232 201540 214976 268720 322464 403080 429952 537440 644928 806160 859904 1074880 1289856 1612320 2149760 2579712 3224640 4299520 6449280 12898560