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12775960 = 235319399
BaseRepresentation
bin110000101111…
…001000011000
3220001002022201
4300233020120
511232312320
61133455544
7213410461
oct60571030
926032281
1012775960
11723684a
1243415b4
132854252
1419a7d68
1511c570a
hexc2f218

12775960 has 16 divisors (see below), whose sum is σ = 28746000. Its totient is φ = 5110368.

The previous prime is 12775951. The next prime is 12775981. The reversal of 12775960 is 6957721.

It is a congruent number.

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, 159660 + ... + 159739.

It is an arithmetic number, because the mean of its divisors is an integer number (1796625).

Almost surely, 212775960 is an apocalyptic number.

12775960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12775960 is an abundant number, since it is smaller than the sum of its proper divisors (15970040).

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

12775960 is a wasteful number, since it uses less digits than its factorization.

12775960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319410 (or 319406 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 12775960 is about 3574.3474928999. The cubic root of 12775960 is about 233.7748827258.

The spelling of 12775960 in words is "twelve million, seven hundred seventy-five thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 319399 638798 1277596 1596995 2555192 3193990 6387980 12775960