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12800372 = 2213376653
BaseRepresentation
bin110000110101…
…000101110100
3220002022210212
4300311011310
511234102442
61134204552
7213541604
oct60650564
926068725
1012800372
117253122
124353758
1328623b0
1419b2c04
1511cca82
hexc35174

12800372 has 24 divisors (see below), whose sum is σ = 24779496. Its totient is φ = 5747328.

The previous prime is 12800353. The next prime is 12800387. The reversal of 12800372 is 27300821.

It can be written as a sum of positive squares in 4 ways, for example, as 155236 + 12645136 = 394^2 + 3556^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1403 + ... + 5250.

It is an arithmetic number, because the mean of its divisors is an integer number (1032479).

Almost surely, 212800372 is an apocalyptic number.

It is an amenable number.

12800372 is a deficient number, since it is larger than the sum of its proper divisors (11979124).

12800372 is a wasteful number, since it uses less digits than its factorization.

12800372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6707 (or 6705 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 12800372 is about 3577.7607522024. The cubic root of 12800372 is about 233.9236851488.

The spelling of 12800372 in words is "twelve million, eight hundred thousand, three hundred seventy-two".

Divisors: 1 2 4 13 26 37 52 74 148 481 962 1924 6653 13306 26612 86489 172978 246161 345956 492322 984644 3200093 6400186 12800372