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23303232520 = 2354313548391
BaseRepresentation
bin10101101100111110…
…110001110000001000
32020011001010212101221
4111230332301300020
5340211111420040
614412205051424
71453322131261
oct255476616010
966131125357
1023303232520
119979081557
124624256b74
132274b4c3a9
1411b0ca3968
15915c5b74a
hex56cfb1c08

23303232520 has 32 divisors (see below), whose sum is σ = 53651632320. Its totient is φ = 9104518080.

The previous prime is 23303232517. The next prime is 23303232539. The reversal of 23303232520 is 2523230332.

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, 6772476 + ... + 6775915.

It is an arithmetic number, because the mean of its divisors is an integer number (1676613510).

Almost surely, 223303232520 is an apocalyptic number.

23303232520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23303232520 is an abundant number, since it is smaller than the sum of its proper divisors (30348399800).

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

23303232520 is a wasteful number, since it uses less digits than its factorization.

23303232520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13548445 (or 13548441 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 25.

Adding to 23303232520 its reverse (2523230332), we get a palindrome (25826462852).

The spelling of 23303232520 in words is "twenty-three billion, three hundred three million, two hundred thirty-two thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 43 86 172 215 344 430 860 1720 13548391 27096782 54193564 67741955 108387128 135483910 270967820 541935640 582580813 1165161626 2330323252 2912904065 4660646504 5825808130 11651616260 23303232520