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12799700 = 2252127997
BaseRepresentation
bin110000110100…
…111011010100
3220002021212222
4300310323110
511234042300
61134201512
7213536624
oct60647324
926067788
1012799700
117252671
124353298
132861cb4
1419b2884
1511cc785
hexc34ed4

12799700 has 18 divisors (see below), whose sum is σ = 27775566. Its totient is φ = 5119840.

The previous prime is 12799693. The next prime is 12799723. The reversal of 12799700 is 799721.

12799700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1817104 + 10982596 = 1348^2 + 3314^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63899 + ... + 64098.

It is an arithmetic number, because the mean of its divisors is an integer number (1543087).

Almost surely, 212799700 is an apocalyptic number.

12799700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12799700 is an abundant number, since it is smaller than the sum of its proper divisors (14975866).

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

12799700 is a wasteful number, since it uses less digits than its factorization.

12799700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128011 (or 128004 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 12799700 is about 3577.6668374794. Note that the first 3 decimals coincide. The cubic root of 12799700 is about 233.9195915317.

The spelling of 12799700 in words is "twelve million, seven hundred ninety-nine thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 127997 255994 511988 639985 1279970 2559940 3199925 6399850 12799700