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18034694790 = 235785879499
BaseRepresentation
bin10000110010111100…
…111001101010000110
31201112212110102022220
4100302330321222012
5243413340213130
612141322033210
71205626243050
oct206274715206
951485412286
1018034694790
11771512a142
1235b3948806
13191548a448
14c3129c8d0
1570845d410
hex432f39a86

18034694790 has 32 divisors (see below), whose sum is σ = 49466592000. Its totient is φ = 4122215904.

The previous prime is 18034694753. The next prime is 18034694791. The reversal of 18034694790 is 9749643081.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18034694791) 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 in 15 ways as a sum of consecutive naturals, for example, 42939540 + ... + 42939959.

It is an arithmetic number, because the mean of its divisors is an integer number (1545831000).

Almost surely, 218034694790 is an apocalyptic number.

18034694790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18034694790 is an abundant number, since it is smaller than the sum of its proper divisors (31431897210).

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

18034694790 is a wasteful number, since it uses less digits than its factorization.

18034694790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85879516.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 18034694790 in words is "eighteen billion, thirty-four million, six hundred ninety-four thousand, seven hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 85879499 171758998 257638497 429397495 515276994 601156493 858794990 1202312986 1288192485 1803469479 2576384970 3005782465 3606938958 6011564930 9017347395 18034694790