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18079642334 = 2133750936923
BaseRepresentation
bin10000110101101000…
…010111001011011110
31201200000000222202202
4100311220113023132
5244011342023314
612150005251502
71210013265335
oct206550271336
951600028682
1018079642334
117738539976
123606a03b92
131921896c20
14c3723cd1c
1570c38b0de
hex435a172de

18079642334 has 32 divisors (see below), whose sum is σ = 30054659040. Its totient is φ = 8102754432.

The previous prime is 18079642333. The next prime is 18079642349. The reversal of 18079642334 is 43324697081.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18079642333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 471197 + ... + 508119.

It is an arithmetic number, because the mean of its divisors is an integer number (939208095).

Almost surely, 218079642334 is an apocalyptic number.

18079642334 is a deficient number, since it is larger than the sum of its proper divisors (11975016706).

18079642334 is a wasteful number, since it uses less digits than its factorization.

18079642334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37484.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 18079642334 in words is "eighteen billion, seventy-nine million, six hundred forty-two thousand, three hundred thirty-four".

Divisors: 1 2 13 26 37 74 481 509 962 1018 6617 13234 18833 36923 37666 73846 244829 479999 489658 959998 1366151 2732302 17759963 18793807 35519926 37587614 244319491 488638982 695370859 1390741718 9039821167 18079642334