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18310226057 = 171254785843
BaseRepresentation
bin10001000011010111…
…111110000010001001
31202021001220212011122
4101003113332002021
5244444404213212
612224523405025
71215513232154
oct210327760211
952231825148
1018310226057
117846710932
123670083775
13195a59bab6
14c59b02c9b
15722737272
hex4435fe089

18310226057 has 8 divisors (see below), whose sum is σ = 19389069216. Its totient is φ = 17231579712.

The previous prime is 18310226041. The next prime is 18310226059. The reversal of 18310226057 is 75062201381.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18310226057 - 24 = 18310226041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18310226059) 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, 170378 + ... + 256220.

It is an arithmetic number, because the mean of its divisors is an integer number (2423633652).

Almost surely, 218310226057 is an apocalyptic number.

18310226057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

18310226057 is a deficient number, since it is larger than the sum of its proper divisors (1078843159).

18310226057 is a wasteful number, since it uses less digits than its factorization.

18310226057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98407.

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 18310226057 in words is "eighteen billion, three hundred ten million, two hundred twenty-six thousand, fifty-seven".

Divisors: 1 17 12547 85843 213299 1459331 1077072121 18310226057