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2018794290893 = 47251171127769
BaseRepresentation
bin11101011000001001100…
…001000011111011001101
321010222212020121202020222
4131120021201003323031
5231033442314302033
64143230555521125
7265565414225042
oct35301141037315
97128766552228
102018794290893
117091908247a6
1228730a1591a5
131184aa1c9063
146d9d299b1c9
15377a7e81598
hex1d609843ecd

2018794290893 has 8 divisors (see below), whose sum is σ = 2069961505920. Its totient is φ = 1967969332000.

The previous prime is 2018794290889. The next prime is 2018794290917. The reversal of 2018794290893 is 3980924978102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2018794290893 - 22 = 2018794290889 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 (2018794490893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85552088 + ... + 85575681.

It is an arithmetic number, because the mean of its divisors is an integer number (258745188240).

Almost surely, 22018794290893 is an apocalyptic number.

It is an amenable number.

2018794290893 is a deficient number, since it is larger than the sum of its proper divisors (51167215027).

2018794290893 is a wasteful number, since it uses less digits than its factorization.

2018794290893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171128067.

The product of its (nonzero) digits is 15676416, while the sum is 62.

The spelling of 2018794290893 in words is "two trillion, eighteen billion, seven hundred ninety-four million, two hundred ninety thousand, eight hundred ninety-three".

Divisors: 1 47 251 11797 171127769 8043005143 42953070019 2018794290893