Search a number
-
+
23180956 = 2243307439
BaseRepresentation
bin101100001101…
…1011010011100
31121121201021221
41120123122130
521413242311
62144503124
7401014651
oct130333234
947551257
1023180956
11120a3217
12791aaa4
134a58256
143115c28
15207d671
hex161b69c

23180956 has 24 divisors (see below), whose sum is σ = 41740160. Its totient is φ = 11258352.

The previous prime is 23180951. The next prime is 23180959. The reversal of 23180956 is 65908132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23180951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52585 + ... + 53023.

Almost surely, 223180956 is an apocalyptic number.

It is an amenable number.

23180956 is a deficient number, since it is larger than the sum of its proper divisors (18559204).

23180956 is a wasteful number, since it uses less digits than its factorization.

23180956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793 (or 791 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 23180956 is about 4814.6605280123. The cubic root of 23180956 is about 285.1305690838.

The spelling of 23180956 in words is "twenty-three million, one hundred eighty thousand, nine hundred fifty-six".

Divisors: 1 2 4 43 86 172 307 439 614 878 1228 1756 13201 18877 26402 37754 52804 75508 134773 269546 539092 5795239 11590478 23180956