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12318708735 = 325273749083
BaseRepresentation
bin10110111100100000…
…01001001111111111
31011210111211020112200
423132100021033333
5200212042134420
65354212402543
7614161203504
oct133620111777
934714736480
1012318708735
115251654223
122479616453
1312141b3088
1484c0a14ab
154c1727b90
hex2de4093ff

12318708735 has 12 divisors (see below), whose sum is σ = 21352428552. Its totient is φ = 6569977968.

The previous prime is 12318708683. The next prime is 12318708739. The reversal of 12318708735 is 53780781321.

It is not a de Polignac number, because 12318708735 - 216 = 12318643199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 273749083 = 12318708735 / (1 + 2 + 3 + 1 + 8 + 7 + 0 + 8 + 7 + 3 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12318708739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136874497 + ... + 136874586.

It is an arithmetic number, because the mean of its divisors is an integer number (1779369046).

Almost surely, 212318708735 is an apocalyptic number.

12318708735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12318708735 is a deficient number, since it is larger than the sum of its proper divisors (9033719817).

12318708735 is a wasteful number, since it uses less digits than its factorization.

12318708735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273749094 (or 273749091 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 12318708735 in words is "twelve billion, three hundred eighteen million, seven hundred eight thousand, seven hundred thirty-five".

Divisors: 1 3 5 9 15 45 273749083 821247249 1368745415 2463741747 4106236245 12318708735