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12953740 = 225647687
BaseRepresentation
bin110001011010…
…100010001100
3220101010012011
4301122202030
511304004430
61141351004
7215051002
oct61324214
926333164
1012953740
117348378
124408464
1328b7147
141a12a72
15120d22a
hexc5a88c

12953740 has 12 divisors (see below), whose sum is σ = 27202896. Its totient is φ = 5181488.

The previous prime is 12953729. The next prime is 12953771. The reversal of 12953740 is 4735921.

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, 323824 + ... + 323863.

It is an arithmetic number, because the mean of its divisors is an integer number (2266908).

Almost surely, 212953740 is an apocalyptic number.

12953740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12953740 is an abundant number, since it is smaller than the sum of its proper divisors (14249156).

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

12953740 is a wasteful number, since it uses less digits than its factorization.

12953740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647696 (or 647694 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 12953740 is about 3599.1304505394. The cubic root of 12953740 is about 234.8542328246.

The spelling of 12953740 in words is "twelve million, nine hundred fifty-three thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 647687 1295374 2590748 3238435 6476870 12953740