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10001031013 = 45472199479
BaseRepresentation
bin10010101000001101…
…11001111101100101
3221210222201000102001
421110012321331211
5130440230443023
64332220445301
7502556234551
oct112406717545
927728630361
1010001031013
114272359696
121b313a9831
13c34c8b83c
146ac350861
153d80136ad
hex2541b9f65

10001031013 has 4 divisors (see below), whose sum is σ = 10003235040. Its totient is φ = 9998826988.

The previous prime is 10001031011. The next prime is 10001031017. The reversal of 10001031013 is 31013010001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10001031013 - 21 = 10001031011 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 (10001031011) 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, 1095193 + ... + 1104286.

It is an arithmetic number, because the mean of its divisors is an integer number (2500808760).

Almost surely, 210001031013 is an apocalyptic number.

It is an amenable number.

10001031013 is a deficient number, since it is larger than the sum of its proper divisors (2204027).

10001031013 is an equidigital number, since it uses as much as digits as its factorization.

10001031013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204026.

The product of its (nonzero) digits is 9, while the sum is 10.

Adding to 10001031013 its reverse (31013010001), we get a palindrome (41014041014).

The spelling of 10001031013 in words is "ten billion, one million, thirty-one thousand, thirteen".

Divisors: 1 4547 2199479 10001031013