Search a number
-
+
23947923680 = 2551491004527
BaseRepresentation
bin10110010011011010…
…000101000011100000
32021210222020120102022
4112103122011003200
5343021132024210
615000155041012
71505310664322
oct262332050340
967728216368
1023947923680
11a179a8456a
124784140168
132348594b55
141232761612
15952656155
hex5936850e0

23947923680 has 48 divisors (see below), whose sum is σ = 56956737600. Its totient is φ = 9514870272.

The previous prime is 23947923673. The next prime is 23947923691. The reversal of 23947923680 is 8632974932.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478424 + ... + 526103.

It is an arithmetic number, because the mean of its divisors is an integer number (1186598700).

Almost surely, 223947923680 is an apocalyptic number.

23947923680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23947923680 is an abundant number, since it is smaller than the sum of its proper divisors (33008813920).

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

23947923680 is a wasteful number, since it uses less digits than its factorization.

23947923680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004691 (or 1004683 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 23947923680 in words is "twenty-three billion, nine hundred forty-seven million, nine hundred twenty-three thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 149 160 298 596 745 1192 1490 2384 2980 4768 5960 11920 23840 1004527 2009054 4018108 5022635 8036216 10045270 16072432 20090540 32144864 40181080 80362160 149674523 160724320 299349046 598698092 748372615 1197396184 1496745230 2394792368 2993490460 4789584736 5986980920 11973961840 23947923680