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18063206364 = 2237215038171
BaseRepresentation
bin10000110100101001…
…101010011111011100
31201121212002221212010
4100310221222133130
5243443140100424
612144221111220
71206423502140
oct206451523734
951555087763
1018063206364
11772a233325
1236013b8510
13191b360ab8
14c34da1220
1570abe1229
hex434a6a7dc

18063206364 has 24 divisors (see below), whose sum is σ = 48168550528. Its totient is φ = 5160916080.

The previous prime is 18063206353. The next prime is 18063206383. The reversal of 18063206364 is 46360236081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107519002 + ... + 107519169.

Almost surely, 218063206364 is an apocalyptic number.

18063206364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18063206364 is an abundant number, since it is smaller than the sum of its proper divisors (30105344164).

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

18063206364 is a wasteful number, since it uses less digits than its factorization.

18063206364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215038185 (or 215038183 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The spelling of 18063206364 in words is "eighteen billion, sixty-three million, two hundred six thousand, three hundred sixty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 215038171 430076342 645114513 860152684 1290229026 1505267197 2580458052 3010534394 4515801591 6021068788 9031603182 18063206364