Search a number
-
+
12431504120 = 235744398229
BaseRepresentation
bin10111001001111100…
…11011001011111000
31012002101001211201112
423210332123023320
5200424431112440
65413322135452
7620031020150
oct134476331370
935071054645
1012431504120
1152aa295052
1224ab351588
1312316868c9
1485d063760
154cb5a8965
hex2e4f9b2f8

12431504120 has 32 divisors (see below), whose sum is σ = 31966725600. Its totient is φ = 4262229888.

The previous prime is 12431504087. The next prime is 12431504123. The reversal of 12431504120 is 2140513421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12431504123) 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, 22198835 + ... + 22199394.

It is an arithmetic number, because the mean of its divisors is an integer number (998960175).

Almost surely, 212431504120 is an apocalyptic number.

12431504120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12431504120 is an abundant number, since it is smaller than the sum of its proper divisors (19535221480).

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

12431504120 is a wasteful number, since it uses less digits than its factorization.

12431504120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44398247 (or 44398243 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 12431504120 in words is "twelve billion, four hundred thirty-one million, five hundred four thousand, one hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 44398229 88796458 177592916 221991145 310787603 355185832 443982290 621575206 887964580 1243150412 1553938015 1775929160 2486300824 3107876030 6215752060 12431504120