| Base | Representation |
|---|---|
| bin | 1000100010011011110111… |
| … | …00100000001010100110000 |
| 3 | 2110110220112011122101222100 |
| 4 | 10101031323210001110300 |
| 5 | 4430103432010402432 |
| 6 | 103533142132140400 |
| 7 | 3645322204033122 |
| oct | 421157344012460 |
| 9 | 73426464571870 |
| 10 | 18775375090992 |
| 11 | 5a89656847383 |
| 12 | 2132963167700 |
| 13 | a626830c2470 |
| 14 | 48ca39509212 |
| 15 | 2285cd3bb07c |
| hex | 11137b901530 |
18775375090992 has 240 divisors, whose sum is σ = 59575529977600. Its totient is φ = 5472030297600.
The previous prime is 18775375090991. The next prime is 18775375090993. The reversal of 18775375090992 is 29909057357781.
18775375090992 is a `hidden beast` number, since 1 + 87 + 7 + 5 + 37 + 509 + 0 + 9 + 9 + 2 = 666.
It is an interprime number because it is at equal distance from previous prime (18775375090991) and next prime (18775375090993).
It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (72).
It is a self number, because there is not a number n which added to its sum of digits gives 18775375090992.
It is not an unprimeable number, because it can be changed into a prime (18775375090991) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 218735859 + ... + 218821677.
Almost surely, 218775375090992 is an apocalyptic number.
18775375090992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 18775375090992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29787764988800).
18775375090992 is an abundant number, since it is smaller than the sum of its proper divisors (40800154886608).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18775375090992 is a wasteful number, since it uses less digits than its factorization.
18775375090992 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 92016 (or 92007 counting only the distinct ones).
The product of its (nonzero) digits is 300056400, while the sum is 72.
The spelling of 18775375090992 in words is "eighteen trillion, seven hundred seventy-five billion, three hundred seventy-five million, ninety thousand, nine hundred ninety-two".
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