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12800410660 = 2253593894583
BaseRepresentation
bin10111110101111011…
…01100010000100100
31020001002020020100201
423322331230100210
5202203401120120
65514101120244
7632130460342
oct137275542044
936032206321
1012800410660
115479552a94
1225929b9084
13128cc2c5bb
14896052992
154edb7940a
hex2faf6c424

12800410660 has 48 divisors (see below), whose sum is σ = 27030931200. Its totient is φ = 5091665024.

The previous prime is 12800410657. The next prime is 12800410741. The reversal of 12800410660 is 6601400821.

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, 2790729 + ... + 2795311.

It is an arithmetic number, because the mean of its divisors is an integer number (563144400).

Almost surely, 212800410660 is an apocalyptic number.

12800410660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12800410660 is an abundant number, since it is smaller than the sum of its proper divisors (14230520540).

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

12800410660 is a wasteful number, since it uses less digits than its factorization.

12800410660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5340 (or 5338 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 12800410660 in words is "twelve billion, eight hundred million, four hundred ten thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 359 389 718 778 1436 1556 1795 1945 3590 3890 4583 7180 7780 9166 18332 22915 45830 91660 139651 279302 558604 698255 1396510 1645297 1782787 2793020 3290594 3565574 6581188 7131148 8226485 8913935 16452970 17827870 32905940 35655740 640020533 1280041066 2560082132 3200102665 6400205330 12800410660