Base | Representation |
---|---|
bin | 10001100001000110… |
… | …000000000000000000 |
3 | 1210112211010122221102 |
4 | 101201012000000000 |
5 | 302010030111000 |
6 | 12350214313532 |
7 | 1234046301620 |
oct | 214106000000 |
9 | 53484118842 |
10 | 18808832000 |
11 | 7a82105962 |
12 | 378b0588a8 |
13 | 1a099864ba |
14 | ca6014880 |
15 | 7513c73d5 |
hex | 461180000 |
18808832000 has 320 divisors, whose sum is σ = 54962107200. Its totient is φ = 6291456000.
The previous prime is 18808831997. The next prime is 18808832023. The reversal of 18808832000 is 23880881.
It is a tau number, because it is divible by the number of its divisors (320).
It is a super-2 number, since 2×188088320002 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458751980 + ... + 458752020.
It is an arithmetic number, because the mean of its divisors is an integer number (171756585).
Almost surely, 218808832000 is an apocalyptic number.
18808832000 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 18808832000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27481053600).
18808832000 is an abundant number, since it is smaller than the sum of its proper divisors (36153275200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18808832000 is an frugal number, since it uses more digits than its factorization.
18808832000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 101 (or 55 counting only the distinct ones).
The product of its (nonzero) digits is 24576, while the sum is 38.
The spelling of 18808832000 in words is "eighteen billion, eight hundred eight million, eight hundred thirty-two thousand".
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