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13057003 = 17768059
BaseRepresentation
bin110001110011…
…101111101011
3220120100211201
4301303233223
511320311003
61143505031
7215661031
oct61635753
926510751
1013057003
117408a13
124458177
13292214b
141a3c551
15122db1d
hexc73beb

13057003 has 4 divisors (see below), whose sum is σ = 13825080. Its totient is φ = 12288928.

The previous prime is 13056973. The next prime is 13057007. The reversal of 13057003 is 30075031.

13057003 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30075031 = 74296433.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13057003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13057007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384013 + ... + 384046.

It is an arithmetic number, because the mean of its divisors is an integer number (3456270).

Almost surely, 213057003 is an apocalyptic number.

13057003 is a deficient number, since it is larger than the sum of its proper divisors (768077).

13057003 is an equidigital number, since it uses as much as digits as its factorization.

13057003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768076.

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 13057003 is about 3613.4475227959. The cubic root of 13057003 is about 235.4766423673.

The spelling of 13057003 in words is "thirteen million, fifty-seven thousand, three".

Divisors: 1 17 768059 13057003