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18035134868 = 225976420063
BaseRepresentation
bin10000110010111110…
…100101000110010100
31201112220021210000002
4100302332211012110
5243413443303433
612141335310432
71205633055062
oct206276450624
951486253002
1018035134868
1177153aa843
1235b3b1b418
1319155b284a
14c31375032
157084e89e8
hex432fa5194

18035134868 has 12 divisors (see below), whose sum is σ = 32096426880. Its totient is φ = 8864727192.

The previous prime is 18035134867. The next prime is 18035134907. The reversal of 18035134868 is 86843153081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18035134861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38209796 + ... + 38210267.

It is an arithmetic number, because the mean of its divisors is an integer number (2674702240).

Almost surely, 218035134868 is an apocalyptic number.

It is an amenable number.

18035134868 is a deficient number, since it is larger than the sum of its proper divisors (14061292012).

18035134868 is a wasteful number, since it uses less digits than its factorization.

18035134868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76420126 (or 76420124 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 18035134868 in words is "eighteen billion, thirty-five million, one hundred thirty-four thousand, eight hundred sixty-eight".

Divisors: 1 2 4 59 118 236 76420063 152840126 305680252 4508783717 9017567434 18035134868