Search a number
-
+
12453765380 = 2257233867629
BaseRepresentation
bin10111001100100110…
…10110000100000100
31012010220221211102122
423212103112010010
5201001130443010
65415435225112
7620421154610
oct134623260404
935126854378
1012453765380
11531090a291
1224b68a8198
13123617c354
14861dba340
154cd504855
hex2e64d6104

12453765380 has 48 divisors (see below), whose sum is σ = 31188568320. Its totient is φ = 4084215168.

The previous prime is 12453765353. The next prime is 12453765391. The reversal of 12453765380 is 8356735421.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1930595 + ... + 1937034.

It is an arithmetic number, because the mean of its divisors is an integer number (649761840).

Almost surely, 212453765380 is an apocalyptic number.

12453765380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12453765380 is an abundant number, since it is smaller than the sum of its proper divisors (18734802940).

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

12453765380 is a wasteful number, since it uses less digits than its factorization.

12453765380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3867668 (or 3867666 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 12453765380 in words is "twelve billion, four hundred fifty-three million, seven hundred sixty-five thousand, three hundred eighty".

Divisors: 1 2 4 5 7 10 14 20 23 28 35 46 70 92 115 140 161 230 322 460 644 805 1610 3220 3867629 7735258 15470516 19338145 27073403 38676290 54146806 77352580 88955467 108293612 135367015 177910934 270734030 355821868 444777335 541468060 622688269 889554670 1245376538 1779109340 2490753076 3113441345 6226882690 12453765380