Base | Representation |
---|---|
bin | 10001010101110110… |
… | …011000111010011000 |
3 | 1210001200011200021000 |
4 | 101111312120322120 |
5 | 301113232042420 |
6 | 12315355145000 |
7 | 1226266002162 |
oct | 212566307230 |
9 | 53050150230 |
10 | 18620190360 |
11 | 7995680682 |
12 | 3737a45160 |
13 | 19a9878125 |
14 | c88d4b932 |
15 | 73ea63690 |
hex | 455d98e98 |
18620190360 has 128 divisors (see below), whose sum is σ = 62099136000. Its totient is φ = 4962837888.
The previous prime is 18620190353. The next prime is 18620190367. The reversal of 18620190360 is 6309102681.
18620190360 is a `hidden beast` number, since 1 + 8 + 6 + 201 + 90 + 360 = 666.
It is an interprime number because it is at equal distance from previous prime (18620190353) and next prime (18620190367).
It is a super-2 number, since 2×186201903602 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18620190367) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3132271 + ... + 3138209.
It is an arithmetic number, because the mean of its divisors is an integer number (485149500).
Almost surely, 218620190360 is an apocalyptic number.
18620190360 is a gapful number since it is divisible by the number (10) 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 18620190360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31049568000).
18620190360 is an abundant number, since it is smaller than the sum of its proper divisors (43478945640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18620190360 is a wasteful number, since it uses less digits than its factorization.
18620190360 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8862 (or 8852 counting only the distinct ones).
The product of its (nonzero) digits is 15552, while the sum is 36.
The spelling of 18620190360 in words is "eighteen billion, six hundred twenty million, one hundred ninety thousand, three hundred sixty".
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