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18037298152 = 232254662269
BaseRepresentation
bin10000110011000110…
…110101001111101000
31201120001100200110201
4100303012311033220
5243420022020102
612141453521544
71205660335036
oct206306651750
951501320421
1018037298152
117716648085
1235b47a32b4
131915b8c3b3
14c31779556
157087c4987
hex4331b53e8

18037298152 has 8 divisors (see below), whose sum is σ = 33819934050. Its totient is φ = 9018649072.

The previous prime is 18037298143. The next prime is 18037298159. The reversal of 18037298152 is 25189273081.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 13301931556 + 4735366596 = 115334^2 + 68814^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (18037298159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127331127 + ... + 1127331142.

Almost surely, 218037298152 is an apocalyptic number.

It is an amenable number.

18037298152 is a deficient number, since it is larger than the sum of its proper divisors (15782635898).

18037298152 is a wasteful number, since it uses less digits than its factorization.

18037298152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2254662275 (or 2254662271 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The spelling of 18037298152 in words is "eighteen billion, thirty-seven million, two hundred ninety-eight thousand, one hundred fifty-two".

Divisors: 1 2 4 8 2254662269 4509324538 9018649076 18037298152