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12838700 = 2252718341
BaseRepresentation
bin110000111110…
…011100101100
3220011021101102
4300332130230
511241314300
61135102232
7214061420
oct60763454
926137342
1012838700
1172799a6
124371978
132876984
1419c2b80
1511d90d5
hexc3e72c

12838700 has 36 divisors (see below), whose sum is σ = 31841712. Its totient is φ = 4401600.

The previous prime is 12838691. The next prime is 12838733. The reversal of 12838700 is 783821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8471 + ... + 9870.

It is an arithmetic number, because the mean of its divisors is an integer number (884492).

Almost surely, 212838700 is an apocalyptic number.

12838700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12838700 is an abundant number, since it is smaller than the sum of its proper divisors (19003012).

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

12838700 is a wasteful number, since it uses less digits than its factorization.

12838700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18362 (or 18355 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 12838700 is about 3583.1131715311. The cubic root of 12838700 is about 234.1569307947.

The spelling of 12838700 in words is "twelve million, eight hundred thirty-eight thousand, seven hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 175 350 700 18341 36682 73364 91705 128387 183410 256774 366820 458525 513548 641935 917050 1283870 1834100 2567740 3209675 6419350 12838700