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23143314439 = 7191033168451
BaseRepresentation
bin10101100011011100…
…101111010000000111
32012201220020012001001
4111203130233100013
5334344142030224
614344253314131
71446340632640
oct254334572007
965656205031
1023143314439
1198a6885753
12459a795947
13224a989ccb
1411979566c7
15906bbd544
hex56372f407

23143314439 has 16 divisors (see below), whose sum is σ = 27868698880. Its totient is φ = 18774763200.

The previous prime is 23143314421. The next prime is 23143314443. The reversal of 23143314439 is 93441334132.

It is a cyclic number.

It is not a de Polignac number, because 23143314439 - 221 = 23141217287 is a prime.

It is a super-2 number, since 2×231433144392 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23143314398 and 23143314407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23143324439) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53164 + ... + 221614.

It is an arithmetic number, because the mean of its divisors is an integer number (1741793680).

Almost surely, 223143314439 is an apocalyptic number.

23143314439 is a deficient number, since it is larger than the sum of its proper divisors (4725384441).

23143314439 is a wasteful number, since it uses less digits than its factorization.

23143314439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169510.

The product of its digits is 93312, while the sum is 37.

The spelling of 23143314439 in words is "twenty-three billion, one hundred forty-three million, three hundred fourteen thousand, four hundred thirty-nine".

Divisors: 1 7 19 133 1033 7231 19627 137389 168451 1179157 3200569 22403983 174009883 1218069181 3306187777 23143314439