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18743069692 = 22291395032311
BaseRepresentation
bin10001011101001011…
…001000101111111100
31210101020101121000101
4101131023020233330
5301341211212232
612335505010444
71232320315024
oct213513105774
953336347011
1018743069692
117a48a79746
123771023a24
1319c916c7a9
14c9b3b6a84
1574a7371e7
hex45d2c8bfc

18743069692 has 48 divisors (see below), whose sum is σ = 34258291200. Its totient is φ = 8961543360.

The previous prime is 18743069671. The next prime is 18743069729. The reversal of 18743069692 is 29696034781.

It is a super-2 number, since 2×187430696922 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8109217 + ... + 8111527.

It is an arithmetic number, because the mean of its divisors is an integer number (713714400).

Almost surely, 218743069692 is an apocalyptic number.

It is an amenable number.

18743069692 is a deficient number, since it is larger than the sum of its proper divisors (15515221508).

18743069692 is a wasteful number, since it uses less digits than its factorization.

18743069692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2986 (or 2984 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 18743069692 in words is "eighteen billion, seven hundred forty-three million, sixty-nine thousand, six hundred ninety-two".

Divisors: 1 2 4 29 58 116 139 278 503 556 1006 2012 2311 4031 4622 8062 9244 14587 16124 29174 58348 67019 69917 134038 139834 268076 279668 321229 642458 1162433 1284916 2027593 2324866 4055186 4649732 8110372 9315641 18631282 33710557 37262564 67421114 134842228 161578187 323156374 646312748 4685767423 9371534846 18743069692