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23001113020 = 2257315754187
BaseRepresentation
bin10101011010111110…
…010010000110111100
32012100222122121100211
4111122332102012330
5334101241104040
614322213402204
71442663143354
oct253276220674
965328577324
1023001113020
11983358a716
12455b039364
13222738b962
141182adbb64
158e947e8ea
hex55af921bc

23001113020 has 24 divisors (see below), whose sum is σ = 48964016304. Its totient is φ = 9074411136.

The previous prime is 23001112963. The next prime is 23001113063. The reversal of 23001113020 is 2031110032.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7875634 + ... + 7878553.

It is an arithmetic number, because the mean of its divisors is an integer number (2040167346).

Almost surely, 223001113020 is an apocalyptic number.

23001113020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23001113020 is an abundant number, since it is smaller than the sum of its proper divisors (25962903284).

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

23001113020 is a wasteful number, since it uses less digits than its factorization.

23001113020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15754269 (or 15754267 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 23001113020 its reverse (2031110032), we get a palindrome (25032223052).

The spelling of 23001113020 in words is "twenty-three billion, one million, one hundred thirteen thousand, twenty".

Divisors: 1 2 4 5 10 20 73 146 292 365 730 1460 15754187 31508374 63016748 78770935 157541870 315083740 1150055651 2300111302 4600222604 5750278255 11500556510 23001113020