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23493802860 = 223251121956773
BaseRepresentation
bin10101111000010101…
…101111101101101100
32020122022201211202200
4111320111233231230
5341103403142420
614443133421500
71461125013033
oct257025575554
966568654680
1023493802860
119a66703900
12467803a890
1322a54845c8
1411cc30d71a
15927851b90
hex57856fb6c

23493802860 has 216 divisors, whose sum is σ = 82456286640. Its totient is φ = 5395610880.

The previous prime is 23493802853. The next prime is 23493802861. The reversal of 23493802860 is 6820839432.

23493802860 is a `hidden beast` number, since 2 + 3 + 493 + 80 + 2 + 86 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23493802861) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 385434 + ... + 442206.

Almost surely, 223493802860 is an apocalyptic number.

23493802860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23493802860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41228143320).

23493802860 is an abundant number, since it is smaller than the sum of its proper divisors (58962483780).

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

23493802860 is a wasteful number, since it uses less digits than its factorization.

23493802860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56829 (or 56813 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 23493802860 in words is "twenty-three billion, four hundred ninety-three million, eight hundred two thousand, eight hundred sixty".