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12903357 = 3171132239
BaseRepresentation
bin110001001110…
…001110111101
3220021120002010
4301032032331
511300401412
61140321433
7214451055
oct61161675
926246063
1012903357
117313535
1243a3279
13289a22c
1419dc565
1511ed33c
hexc4e3bd

12903357 has 16 divisors (see below), whose sum is σ = 18385920. Its totient is φ = 8020992.

The previous prime is 12903349. The next prime is 12903367. The reversal of 12903357 is 75330921.

It is not a de Polignac number, because 12903357 - 23 = 12903349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12903367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4644 + ... + 6882.

It is an arithmetic number, because the mean of its divisors is an integer number (1149120).

Almost surely, 212903357 is an apocalyptic number.

12903357 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12903357 is a deficient number, since it is larger than the sum of its proper divisors (5482563).

12903357 is a wasteful number, since it uses less digits than its factorization.

12903357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 12903357 is about 3592.1243018582. The cubic root of 12903357 is about 234.5493521513.

The spelling of 12903357 in words is "twelve million, nine hundred three thousand, three hundred fifty-seven".

Divisors: 1 3 17 51 113 339 1921 2239 5763 6717 38063 114189 253007 759021 4301119 12903357