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12952340 = 225647617
BaseRepresentation
bin110001011010…
…001100010100
3220101001021022
4301122030110
511303433330
61141340312
7215043632
oct61321424
926331238
1012952340
117347315
124407698
1328b660b
141a12352
15120cae5
hexc5a314

12952340 has 12 divisors (see below), whose sum is σ = 27199956. Its totient is φ = 5180928.

The previous prime is 12952339. The next prime is 12952367. The reversal of 12952340 is 4325921.

It can be written as a sum of positive squares in 2 ways, for example, as 9024016 + 3928324 = 3004^2 + 1982^2 .

It is a super-2 number, since 2×129523402 = 335526222951200, which contains 22 as substring.

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, 323789 + ... + 323828.

It is an arithmetic number, because the mean of its divisors is an integer number (2266663).

Almost surely, 212952340 is an apocalyptic number.

12952340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12952340 is an abundant number, since it is smaller than the sum of its proper divisors (14247616).

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

12952340 is a wasteful number, since it uses less digits than its factorization.

12952340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647626 (or 647624 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 12952340 is about 3598.9359538619. The cubic root of 12952340 is about 234.8457717476.

The spelling of 12952340 in words is "twelve million, nine hundred fifty-two thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 647617 1295234 2590468 3238085 6476170 12952340