Search a number
-
+
23840900660 = 2253083386651
BaseRepresentation
bin10110001101000001…
…110100011000110100
32021112111212020102202
4112031001310120310
5342311232310120
614541413124032
71502541212003
oct261501643064
967474766382
1023840900660
11a124626595
124754329618
13232c362815
141222462c3a
15948065875
hex58d074634

23840900660 has 24 divisors (see below), whose sum is σ = 50082260256. Its totient is φ = 9533242400.

The previous prime is 23840900651. The next prime is 23840900663. The reversal of 23840900660 is 6600904832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23840900663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131666 + ... + 254985.

It is an arithmetic number, because the mean of its divisors is an integer number (2086760844).

Almost surely, 223840900660 is an apocalyptic number.

23840900660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23840900660 is an abundant number, since it is smaller than the sum of its proper divisors (26241359596).

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

23840900660 is a wasteful number, since it uses less digits than its factorization.

23840900660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389743 (or 389741 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 23840900660 in words is "twenty-three billion, eight hundred forty million, nine hundred thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 3083 6166 12332 15415 30830 61660 386651 773302 1546604 1933255 3866510 7733020 1192045033 2384090066 4768180132 5960225165 11920450330 23840900660