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23139093744 = 2435133712373
BaseRepresentation
bin10101100011001100…
…101000110011110000
32012201121021202100000
4111203030220303300
5334342101444434
614344023030000
71446260023464
oct254314506360
965647252300
1023139093744
1198a4462678
12459929b300
132249b3cb60
1411971784a4
15906637b99
hex563328cf0

23139093744 has 240 divisors, whose sum is σ = 74282210912. Its totient is φ = 6926736384.

The previous prime is 23139093743. The next prime is 23139093763. The reversal of 23139093744 is 44739093132.

It is a self number, because there is not a number n which added to its sum of digits gives 23139093744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23139093743) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1863942 + ... + 1876314.

Almost surely, 223139093744 is an apocalyptic number.

23139093744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23139093744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37141105456).

23139093744 is an abundant number, since it is smaller than the sum of its proper divisors (51143117168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23139093744 is a wasteful number, since it uses less digits than its factorization.

23139093744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12446 (or 12428 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The spelling of 23139093744 in words is "twenty-three billion, one hundred thirty-nine million, ninety-three thousand, seven hundred forty-four".