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18252205037 = 117332263699
BaseRepresentation
bin10000111111111010…
…101000101111101101
31202010000202002021222
4100333322220233231
5244340031030122
612215052033125
71214210116523
oct207772505755
952100662258
1018252205037
117816991880
1236547627a5
13194b565831
14c5211c313
1571c5c5b42
hex43fea8bed

18252205037 has 8 divisors (see below), whose sum is σ = 19938669600. Its totient is φ = 16570269360.

The previous prime is 18252205009. The next prime is 18252205061. The reversal of 18252205037 is 73050225281.

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

It is a cyclic number.

It is not a de Polignac number, because 18252205037 - 230 = 17178463213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18252204988 and 18252205006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18252205067) 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, 1123787 + ... + 1139912.

It is an arithmetic number, because the mean of its divisors is an integer number (2492333700).

Almost surely, 218252205037 is an apocalyptic number.

It is an amenable number.

18252205037 is a deficient number, since it is larger than the sum of its proper divisors (1686464563).

18252205037 is a wasteful number, since it uses less digits than its factorization.

18252205037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2264443.

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 18252205037 in words is "eighteen billion, two hundred fifty-two million, two hundred five thousand, thirty-seven".

Divisors: 1 11 733 8063 2263699 24900689 1659291367 18252205037