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10305502013 = 75713613609
BaseRepresentation
bin10011001100100000…
…10111101100111101
3222121012121202002202
421212100113230331
5132101202031023
64422334401245
7513244215242
oct114620275475
928535552082
1010305502013
114409207214
121bb7360225
13c830936b1
146da9695c9
15404b07128
hex266417b3d

10305502013 has 4 divisors (see below), whose sum is σ = 10319116380. Its totient is φ = 10291887648.

The previous prime is 10305502003. The next prime is 10305502063. The reversal of 10305502013 is 31020550301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4472666884 + 5832835129 = 66878^2 + 76373^2 .

It is a cyclic number.

It is not a de Polignac number, because 10305502013 - 28 = 10305501757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10305502003) 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, 6806048 + ... + 6807561.

It is an arithmetic number, because the mean of its divisors is an integer number (2579779095).

Almost surely, 210305502013 is an apocalyptic number.

It is an amenable number.

10305502013 is a deficient number, since it is larger than the sum of its proper divisors (13614367).

10305502013 is an equidigital number, since it uses as much as digits as its factorization.

10305502013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13614366.

The product of its (nonzero) digits is 450, while the sum is 20.

The spelling of 10305502013 in words is "ten billion, three hundred five million, five hundred two thousand, thirteen".

Divisors: 1 757 13613609 10305502013