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12827740 = 225641387
BaseRepresentation
bin110000111011…
…110001011100
3220010201100111
4300323301130
511240441430
61134535404
7214014442
oct60736134
926121314
1012827740
117271742
124367564
1328719a3
1419bcb92
1511d5c2a
hexc3bc5c

12827740 has 12 divisors (see below), whose sum is σ = 26938296. Its totient is φ = 5131088.

The previous prime is 12827729. The next prime is 12827743. The reversal of 12827740 is 4772821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12827743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320674 + ... + 320713.

It is an arithmetic number, because the mean of its divisors is an integer number (2244858).

Almost surely, 212827740 is an apocalyptic number.

12827740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12827740 is an abundant number, since it is smaller than the sum of its proper divisors (14110556).

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

12827740 is a wasteful number, since it uses less digits than its factorization.

12827740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641396 (or 641394 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 12827740 is about 3581.5834486998. The cubic root of 12827740 is about 234.0902809890.

The spelling of 12827740 in words is "twelve million, eight hundred twenty-seven thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 641387 1282774 2565548 3206935 6413870 12827740