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12946460 = 2251394657
BaseRepresentation
bin110001011000…
…110000011100
3220100202012112
4301120300130
511303241320
61141253152
7215020532
oct61306034
926322175
1012946460
11734295a
1244041b8
1328b3a37
141a10152
15120aec5
hexc58c1c

12946460 has 24 divisors (see below), whose sum is σ = 27389040. Its totient is φ = 5140224.

The previous prime is 12946459. The next prime is 12946463. The reversal of 12946460 is 6464921.

It is a happy number.

It is a super-2 number, since 2×129464602 = 335221653063200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12946463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 452 + ... + 5108.

It is an arithmetic number, because the mean of its divisors is an integer number (1141210).

Almost surely, 212946460 is an apocalyptic number.

12946460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12946460 is an abundant number, since it is smaller than the sum of its proper divisors (14442580).

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

12946460 is a wasteful number, since it uses less digits than its factorization.

12946460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4805 (or 4803 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 12946460 is about 3598.1189530086. The cubic root of 12946460 is about 234.8102285651.

The spelling of 12946460 in words is "twelve million, nine hundred forty-six thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 139 278 556 695 1390 2780 4657 9314 18628 23285 46570 93140 647323 1294646 2589292 3236615 6473230 12946460