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23103055872 = 21135133571
BaseRepresentation
bin10101100001000011…
…001010100000000000
32012122002110211200000
4111201003022200000
5334303340241442
614340254400000
71445341510011
oct254103124000
965562424600
1023103055872
119886088906
124589200000
132242532880
141192477008
159033b9d4c
hex5610ca800

23103055872 has 288 divisors, whose sum is σ = 74540924640. Its totient is φ = 7106641920.

The previous prime is 23103055819. The next prime is 23103055883. The reversal of 23103055872 is 27855030132.

It is a happy number.

23103055872 is a `hidden beast` number, since 2 + 3 + 1 + 0 + 30 + 558 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6467847 + ... + 6471417.

It is an arithmetic number, because the mean of its divisors is an integer number (258822655).

Almost surely, 223103055872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23103055872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37270462320).

23103055872 is an abundant number, since it is smaller than the sum of its proper divisors (51437868768).

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

23103055872 is an equidigital number, since it uses as much as digits as its factorization.

23103055872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3621 (or 3589 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 23103055872 in words is "twenty-three billion, one hundred three million, fifty-five thousand, eight hundred seventy-two".