Search a number
-
+
23015882560 = 26511193771131
BaseRepresentation
bin10101011011110110…
…100111111101000000
32012102000102222100211
4111123312213331000
5334114031220220
614323502123504
71443232526266
oct253366477500
965360388324
1023015882560
119840958250
124563b80594
13222a460428
141184a64436
158ea8eab5a
hex55bda7f40

23015882560 has 448 divisors, whose sum is σ = 66047477760. Its totient is φ = 7547904000.

The previous prime is 23015882557. The next prime is 23015882609. The reversal of 23015882560 is 6528851032.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 175693695 + ... + 175693825.

Almost surely, 223015882560 is an apocalyptic number.

23015882560 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 23015882560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33023738880).

23015882560 is an abundant number, since it is smaller than the sum of its proper divisors (43031595200).

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

23015882560 is a wasteful number, since it uses less digits than its factorization.

23015882560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The spelling of 23015882560 in words is "twenty-three billion, fifteen million, eight hundred eighty-two thousand, five hundred sixty".