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12745057800 = 2335221241763
BaseRepresentation
bin10111101111010101…
…00010011000001000
31012220020002000111210
423313222202120020
5202100213322200
65504402453120
7630556126626
oct136752423010
935806060453
1012745057800
115450286622
1225783641a0
13128161b927
1488c964516
154e8d93650
hex2f7aa2608

12745057800 has 48 divisors (see below), whose sum is σ = 39509681040. Its totient is φ = 3398681920.

The previous prime is 12745057789. The next prime is 12745057813. The reversal of 12745057800 is 875054721.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10620282 + ... + 10621481.

It is an arithmetic number, because the mean of its divisors is an integer number (823118355).

Almost surely, 212745057800 is an apocalyptic number.

12745057800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12745057800 is an abundant number, since it is smaller than the sum of its proper divisors (26764623240).

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

12745057800 is a wasteful number, since it uses less digits than its factorization.

12745057800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21241782 (or 21241773 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 39.

The spelling of 12745057800 in words is "twelve billion, seven hundred forty-five million, fifty-seven thousand, eight hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 150 200 300 600 21241763 42483526 63725289 84967052 106208815 127450578 169934104 212417630 254901156 318626445 424835260 509802312 531044075 637252890 849670520 1062088150 1274505780 1593132225 2124176300 2549011560 3186264450 4248352600 6372528900 12745057800