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23104515520 = 26572201611
BaseRepresentation
bin10101100001001000…
…101110110111000000
32012122012012222221001
4111201020232313000
5334304223444040
614340345541344
71445360066362
oct254110566700
965565188831
1023104515520
119886995529
1245897a4854
132242924078
141192736d32
159035a759a
hex56122edc0

23104515520 has 28 divisors (see below), whose sum is σ = 55017628344. Its totient is φ = 9241806080.

The previous prime is 23104515503. The next prime is 23104515523. The reversal of 23104515520 is 2551540132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23104515523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36100486 + ... + 36101125.

It is an arithmetic number, because the mean of its divisors is an integer number (1964915298).

Almost surely, 223104515520 is an apocalyptic number.

23104515520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23104515520 is an abundant number, since it is smaller than the sum of its proper divisors (31913112824).

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

23104515520 is an equidigital number, since it uses as much as digits as its factorization.

23104515520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72201628 (or 72201618 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 23104515520 in words is "twenty-three billion, one hundred four million, five hundred fifteen thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 160 320 72201611 144403222 288806444 361008055 577612888 722016110 1155225776 1444032220 2310451552 2888064440 4620903104 5776128880 11552257760 23104515520