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5105857423 = 23221993801
BaseRepresentation
bin1001100000101010…
…10011001110001111
3111011211120102122111
410300111103032033
540424044414143
62202352124451
7240346033462
oct46025231617
914154512574
105105857423
11219013a287
12ba5b36727
13634a73514
143661792d9
151ed3b699d
hex13055338f

5105857423 has 4 divisors (see below), whose sum is σ = 5327851248. Its totient is φ = 4883863600.

The previous prime is 5105857411. The next prime is 5105857429. The reversal of 5105857423 is 3247585015.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3247585015 = 5649517003.

It is a cyclic number.

It is not a de Polignac number, because 5105857423 - 221 = 5103760271 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5105857429) 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, 110996878 + ... + 110996923.

It is an arithmetic number, because the mean of its divisors is an integer number (1331962812).

Almost surely, 25105857423 is an apocalyptic number.

5105857423 is a deficient number, since it is larger than the sum of its proper divisors (221993825).

5105857423 is a wasteful number, since it uses less digits than its factorization.

5105857423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221993824.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 5105857423 is about 71455.2826808487. The cubic root of 5105857423 is about 1721.9593480718.

The spelling of 5105857423 in words is "five billion, one hundred five million, eight hundred fifty-seven thousand, four hundred twenty-three".

Divisors: 1 23 221993801 5105857423