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18240215451160 = 235456005386279
BaseRepresentation
bin1000010010110111000011…
…00100000000011000011000
32101120202011222100221010011
410021123201210000120120
54342321430123414120
6102443234515531304
73561545354121043
oct411334144003030
971522158327104
1018240215451160
1158a26a51120aa
1220670ab2b9b34
13a240779581a1
14470b8c901c5a
1521970abc1c5a
hex1096e1900618

18240215451160 has 16 divisors (see below), whose sum is σ = 41040484765200. Its totient is φ = 7296086180448.

The previous prime is 18240215451091. The next prime is 18240215451187. The reversal of 18240215451160 is 6115451204281.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 456005386279 = 18240215451160 / (1 + 8 + 2 + 4 + 0 + 2 + 1 + 5 + 4 + 5 + 1 + 1 + 6 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228002693100 + ... + 228002693179.

It is an arithmetic number, because the mean of its divisors is an integer number (2565030297825).

Almost surely, 218240215451160 is an apocalyptic number.

18240215451160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18240215451160 is an abundant number, since it is smaller than the sum of its proper divisors (22800269314040).

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

18240215451160 is a wasteful number, since it uses less digits than its factorization.

18240215451160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456005386290 (or 456005386286 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 40.

The spelling of 18240215451160 in words is "eighteen trillion, two hundred forty billion, two hundred fifteen million, four hundred fifty-one thousand, one hundred sixty".

Divisors: 1 2 4 5 8 10 20 40 456005386279 912010772558 1824021545116 2280026931395 3648043090232 4560053862790 9120107725580 18240215451160