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18092105892 = 223477977119
BaseRepresentation
bin10000110110010111…
…111010000010100100
31201200212111012120000
4100312113322002210
5244023034342032
612151132341300
71210224235260
oct206627720244
951625435500
1018092105892
117744581a33
12360b014830
13192433bc03
14c38b650a0
1570d4ede7c
hex4365fa0a4

18092105892 has 60 divisors (see below), whose sum is σ = 54052965120. Its totient is φ = 5169172464.

The previous prime is 18092105849. The next prime is 18092105893. The reversal of 18092105892 is 29850129081.

It is a super-2 number, since 2×180921058922 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18092105893) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3986292 + ... + 3990827.

It is an arithmetic number, because the mean of its divisors is an integer number (900882752).

Almost surely, 218092105892 is an apocalyptic number.

18092105892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18092105892 is an abundant number, since it is smaller than the sum of its proper divisors (35960859228).

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

18092105892 is a wasteful number, since it uses less digits than its factorization.

18092105892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7977142 (or 7977131 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 45.

The spelling of 18092105892 in words is "eighteen billion, ninety-two million, one hundred five thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 27 28 36 42 54 63 81 84 108 126 162 189 252 324 378 567 756 1134 2268 7977119 15954238 23931357 31908476 47862714 55839833 71794071 95725428 111679666 143588142 167519499 215382213 223359332 287176284 335038998 430764426 502558497 646146639 670077996 861528852 1005116994 1292293278 1507675491 2010233988 2584586556 3015350982 4523026473 6030701964 9046052946 18092105892