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12800338704 = 2432471891303
BaseRepresentation
bin10111110101111010…
…11010101100010000
31020001002002120122200
423322331122230100
5202203341314304
65514055403200
7632130040506
oct137275325420
936032076580
1012800338704
115479503a1a
122592983500
13128cc0591a
14896034676
154edb62e39
hex2faf5ab10

12800338704 has 60 divisors (see below), whose sum is σ = 36585384576. Its totient is φ = 4175994816.

The previous prime is 12800338667. The next prime is 12800338709. The reversal of 12800338704 is 40783300821.

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

It is not an unprimeable number, because it can be changed into a prime (12800338709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 938884 + ... + 952419.

Almost surely, 212800338704 is an apocalyptic number.

It is an amenable number.

12800338704 is an abundant number, since it is smaller than the sum of its proper divisors (23785045872).

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

12800338704 is a wasteful number, since it uses less digits than its factorization.

12800338704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891364 (or 1891355 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 12800338704 in words is "twelve billion, eight hundred million, three hundred thirty-eight thousand, seven hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 36 47 48 72 94 141 144 188 282 376 423 564 752 846 1128 1692 2256 3384 6768 1891303 3782606 5673909 7565212 11347818 15130424 17021727 22695636 30260848 34043454 45391272 68086908 88891241 90782544 136173816 177782482 266673723 272347632 355564964 533347446 711129928 800021169 1066694892 1422259856 1600042338 2133389784 3200084676 4266779568 6400169352 12800338704