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5105031013 = 61109776289
BaseRepresentation
bin1001100000100100…
…01001011101100101
3111011210000110000201
410300102021131211
540423341443023
62202322310501
7240336022225
oct46022113545
914153013021
105105031013
11218a7253a5
12ba57b8431
13634844314
14366002085
151ed2a1bad
hex130489765

5105031013 has 8 divisors (see below), whose sum is σ = 5193518040. Its totient is φ = 5016698880.

The previous prime is 5105030893. The next prime is 5105031049. The reversal of 5105031013 is 3101305015.

It can be written as a sum of positive squares in 4 ways, for example, as 382867489 + 4722163524 = 19567^2 + 68718^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5105031013 - 217 = 5104899941 is a prime.

It is a super-2 number, since 2×51050310132 = 52122683287383612338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5105032013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28773 + ... + 105061.

It is an arithmetic number, because the mean of its divisors is an integer number (649189755).

Almost surely, 25105031013 is an apocalyptic number.

It is an amenable number.

5105031013 is a deficient number, since it is larger than the sum of its proper divisors (88487027).

5105031013 is a wasteful number, since it uses less digits than its factorization.

5105031013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77447.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 5105031013 is about 71449.4997393264. The cubic root of 5105031013 is about 1721.8664403196.

Adding to 5105031013 its reverse (3101305015), we get a palindrome (8206336028).

The spelling of 5105031013 in words is "five billion, one hundred five million, thirty-one thousand, thirteen".

Divisors: 1 61 1097 66917 76289 4653629 83689033 5105031013