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18290920019093 = 156941116546473
BaseRepresentation
bin1000010100010101011111…
…10010100101010010010101
32101202121001122221212020122
410022022233302211102111
54344134301011102333
6102522422130441325
73565322022621521
oct412125762452225
971677048855218
1018290920019093
1159121545644a7
122074aa0133245
13a28a986764c7
144733dca38d81
1521abc733c798
hex10a2afca5495

18290920019093 has 4 divisors (see below), whose sum is σ = 18291036722508. Its totient is φ = 18290803315680.

The previous prime is 18290920019083. The next prime is 18290920019137. The reversal of 18290920019093 is 39091002909281.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6351801197284 + 11939118821809 = 2520278^2 + 3455303^2 .

It is a cyclic number.

It is not a de Polignac number, because 18290920019093 - 214 = 18290920002709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18290920019003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58116296 + ... + 58430177.

It is an arithmetic number, because the mean of its divisors is an integer number (4572759180627).

Almost surely, 218290920019093 is an apocalyptic number.

It is an amenable number.

18290920019093 is a deficient number, since it is larger than the sum of its proper divisors (116703415).

18290920019093 is a wasteful number, since it uses less digits than its factorization.

18290920019093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116703414.

The product of its (nonzero) digits is 629856, while the sum is 53.

The spelling of 18290920019093 in words is "eighteen trillion, two hundred ninety billion, nine hundred twenty million, nineteen thousand, ninety-three".

Divisors: 1 156941 116546473 18290920019093