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23013012439 = 196119855921
BaseRepresentation
bin10101011011101011…
…101011001111010111
32012101211001011022001
4111123223223033113
5334112312344224
614323320420131
71443166243504
oct253353531727
965354034261
1023013012439
11983a27794a
124563017647
132229996c31
1411845184ab
158ea530544
hex55baeb3d7

23013012439 has 8 divisors (see below), whose sum is σ = 24621343280. Its totient is φ = 21444393600.

The previous prime is 23013012413. The next prime is 23013012443. The reversal of 23013012439 is 93421031032.

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 23013012439 - 29 = 23013011927 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 (23013012469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9926802 + ... + 9929119.

It is an arithmetic number, because the mean of its divisors is an integer number (3077667910).

Almost surely, 223013012439 is an apocalyptic number.

23013012439 is a deficient number, since it is larger than the sum of its proper divisors (1608330841).

23013012439 is a wasteful number, since it uses less digits than its factorization.

23013012439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19856001.

The product of its (nonzero) digits is 3888, while the sum is 28.

It can be divided in two parts, 2301 and 3012439, that added together give a triangular number (3014740 = T2455).

The spelling of 23013012439 in words is "twenty-three billion, thirteen million, twelve thousand, four hundred thirty-nine".

Divisors: 1 19 61 1159 19855921 377262499 1211211181 23013012439