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12703940 = 225635197
BaseRepresentation
bin110000011101…
…100011000100
3212220102112022
4300131203010
511223011230
61132142312
7212660504
oct60354304
925812468
1012703940
117197727
124307998
13282a532
141989a04
1511ae1e5
hexc1d8c4

12703940 has 12 divisors (see below), whose sum is σ = 26678316. Its totient is φ = 5081568.

The previous prime is 12703927. The next prime is 12703997. The reversal of 12703940 is 4930721.

It can be written as a sum of positive squares in 2 ways, for example, as 9229444 + 3474496 = 3038^2 + 1864^2 .

It is a super-2 number, since 2×127039402 = 322780183047200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317579 + ... + 317618.

It is an arithmetic number, because the mean of its divisors is an integer number (2223193).

Almost surely, 212703940 is an apocalyptic number.

12703940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12703940 is an abundant number, since it is smaller than the sum of its proper divisors (13974376).

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

12703940 is a wasteful number, since it uses less digits than its factorization.

12703940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635206 (or 635204 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 12703940 is about 3564.2586887037. The cubic root of 12703940 is about 233.3347800364.

The spelling of 12703940 in words is "twelve million, seven hundred three thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 635197 1270394 2540788 3175985 6351970 12703940