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18040752075 = 3522318015807
BaseRepresentation
bin10000110011010100…
…000000011111001011
31201120021212011100210
4100303110000133023
5243421413031300
612142055532203
71206031601553
oct206324003713
951507764323
1018040752075
117718597065
1235b598a063
1319167cb538
14c31dd8163
15708c58050
hex4335007cb

18040752075 has 48 divisors (see below), whose sum is σ = 31146863616. Its totient is φ = 9196704000.

The previous prime is 18040752017. The next prime is 18040752127. The reversal of 18040752075 is 57025704081.

It is not a de Polignac number, because 18040752075 - 27 = 18040751947 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3103822 + ... + 3109628.

It is an arithmetic number, because the mean of its divisors is an integer number (648892992).

Almost surely, 218040752075 is an apocalyptic number.

18040752075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18040752075 is a deficient number, since it is larger than the sum of its proper divisors (13106111541).

18040752075 is a wasteful number, since it uses less digits than its factorization.

18040752075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7644 (or 7639 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 39.

The spelling of 18040752075 in words is "eighteen billion, forty million, seven hundred fifty-two thousand, seventy-five".

Divisors: 1 3 5 15 23 25 69 75 115 345 575 1725 1801 5403 5807 9005 17421 27015 29035 41423 45025 87105 124269 133561 135075 145175 207115 400683 435525 621345 667805 1035575 2003415 3106725 3339025 10017075 10458407 31375221 52292035 156876105 240543361 261460175 721630083 784380525 1202716805 3608150415 6013584025 18040752075