Search a number
-
+
23131002310 = 2513461385967
BaseRepresentation
bin10101100010101101…
…110001010111000110
32012201001001122222021
4111202231301113012
5334333014033220
614343133353354
71446131163343
oct254255612706
965631048867
1023131002310
11989a936439
12459663885a
132248268c20
14119606d7ca
15905a8a4aa
hex562b715c6

23131002310 has 32 divisors (see below), whose sum is σ = 44935938432. Its totient is φ = 8522129280.

The previous prime is 23131002289. The next prime is 23131002311. The reversal of 23131002310 is 1320013132.

It is a super-2 number, since 2×231310023102 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131002311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133054 + ... + 252913.

It is an arithmetic number, because the mean of its divisors is an integer number (1404248076).

Almost surely, 223131002310 is an apocalyptic number.

23131002310 is a deficient number, since it is larger than the sum of its proper divisors (21804936122).

23131002310 is a wasteful number, since it uses less digits than its factorization.

23131002310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386448.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 23131002310 its reverse (1320013132), we get a palindrome (24451015442).

The spelling of 23131002310 in words is "twenty-three billion, one hundred thirty-one million, two thousand, three hundred ten".

Divisors: 1 2 5 10 13 26 65 130 461 922 2305 4610 5993 11986 29965 59930 385967 771934 1929835 3859670 5017571 10035142 25087855 50175710 177930787 355861574 889653935 1779307870 2313100231 4626200462 11565501155 23131002310