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12708940 = 225976551
BaseRepresentation
bin110000011110…
…110001001100
3212220200101111
4300132301030
511223141230
61132221404
7213011206
oct60366114
925820344
1012708940
1171a0462
12430a864
13282c8aa
14198b776
1511b092a
hexc1ec4c

12708940 has 24 divisors (see below), whose sum is σ = 26968032. Its totient is φ = 5030400.

The previous prime is 12708937. The next prime is 12708961. The reversal of 12708940 is 4980721.

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, 1336 + ... + 5215.

It is an arithmetic number, because the mean of its divisors is an integer number (1123668).

Almost surely, 212708940 is an apocalyptic number.

12708940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12708940 is an abundant number, since it is smaller than the sum of its proper divisors (14259092).

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

12708940 is a wasteful number, since it uses less digits than its factorization.

12708940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6657 (or 6655 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12708940 is about 3564.9600278264. The cubic root of 12708940 is about 233.3653878865.

The spelling of 12708940 in words is "twelve million, seven hundred eight thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 97 194 388 485 970 1940 6551 13102 26204 32755 65510 131020 635447 1270894 2541788 3177235 6354470 12708940