Search a number
-
+
23640762580 = 2251182038129
BaseRepresentation
bin10110000001000110…
…010110100011010100
32021000120021011121021
4112001012112203110
5341404013400310
614505503330524
71464561111031
oct260106264324
967016234537
1023640762580
11a031659916
1246b92b0a44
1322c9a5a716
141203a46388
159356d05da
hex5811968d4

23640762580 has 12 divisors (see below), whose sum is σ = 49645601460. Its totient is φ = 9456305024.

The previous prime is 23640762557. The next prime is 23640762659. The reversal of 23640762580 is 8526704632.

It can be written as a sum of positive squares in 2 ways, for example, as 13020635664 + 10620126916 = 114108^2 + 103054^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591019045 + ... + 591019084.

It is an arithmetic number, because the mean of its divisors is an integer number (4137133455).

Almost surely, 223640762580 is an apocalyptic number.

23640762580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23640762580 is an abundant number, since it is smaller than the sum of its proper divisors (26004838880).

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

23640762580 is a wasteful number, since it uses less digits than its factorization.

23640762580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182038138 (or 1182038136 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 23640762580 in words is "twenty-three billion, six hundred forty million, seven hundred sixty-two thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 1182038129 2364076258 4728152516 5910190645 11820381290 23640762580