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23113342540 = 2251507776651
BaseRepresentation
bin10101100001101010…
…011001111001001100
32012122210211110022201
4111201222121321030
5334314003430130
614341303051244
71445525112211
oct254152317114
965583743281
1023113342540
119890974392
124590740b24
1322446c4a62
141193993b08
1590424cbca
hex561a99e4c

23113342540 has 24 divisors (see below), whose sum is σ = 48541871952. Its totient is φ = 9244603200.

The previous prime is 23113342517. The next prime is 23113342589. The reversal of 23113342540 is 4524331132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23113342499 and 23113342508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263215 + ... + 339865.

It is an arithmetic number, because the mean of its divisors is an integer number (2022577998).

Almost surely, 223113342540 is an apocalyptic number.

23113342540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23113342540 is an abundant number, since it is smaller than the sum of its proper divisors (25428529412).

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

23113342540 is a wasteful number, since it uses less digits than its factorization.

23113342540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91737 (or 91735 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 23113342540 its reverse (4524331132), we get a palindrome (27637673672).

The spelling of 23113342540 in words is "twenty-three billion, one hundred thirteen million, three hundred forty-two thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 15077 30154 60308 75385 76651 150770 153302 301540 306604 383255 766510 1533020 1155667127 2311334254 4622668508 5778335635 11556671270 23113342540