Search a number
-
+
23131010 = 257491673
BaseRepresentation
bin101100000111…
…1001110000010
31121112011210002
41120033032002
521410143020
62143440002
7400416230
oct130171602
947464702
1023131010
1112069741
1278b6002
134a3b5b6
143101950
15206d975
hex160f382

23131010 has 32 divisors (see below), whose sum is σ = 47751552. Its totient is φ = 7902720.

The previous prime is 23131001. The next prime is 23131027. The reversal of 23131010 is 1013132.

It is a junction number, because it is equal to n+sod(n) for n = 23130982 and 23131000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34034 + ... + 34706.

It is an arithmetic number, because the mean of its divisors is an integer number (1492236).

Almost surely, 223131010 is an apocalyptic number.

23131010 is an abundant number, since it is smaller than the sum of its proper divisors (24620542).

23131010 is a wasteful number, since it uses less digits than its factorization.

23131010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 23131010 is about 4809.4708648665. The cubic root of 23131010 is about 284.9256397773.

Adding to 23131010 its reverse (1013132), we get a palindrome (24144142).

The spelling of 23131010 in words is "twenty-three million, one hundred thirty-one thousand, ten".

Divisors: 1 2 5 7 10 14 35 70 491 673 982 1346 2455 3365 3437 4711 4910 6730 6874 9422 17185 23555 34370 47110 330443 660886 1652215 2313101 3304430 4626202 11565505 23131010