Base | Representation |
---|---|
bin | 1100011101001011010… |
… | …1011111111000011000 |
3 | 202110100101010200120010 |
4 | 3013102311133320120 |
5 | 12001223100341310 |
6 | 242150030001520 |
7 | 21313613255253 |
oct | 3072265377030 |
9 | 673311120503 |
10 | 213990637080 |
11 | 82831154990 |
12 | 355810462a0 |
13 | 17243a0045c |
14 | a50023c09a |
15 | 5876858320 |
hex | 31d2d5fe18 |
213990637080 has 64 divisors (see below), whose sum is σ = 700332998400. Its totient is φ = 51876517760.
The previous prime is 213990637073. The next prime is 213990637117. The reversal of 213990637080 is 80736099312.
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, 81055740 + ... + 81058379.
It is an arithmetic number, because the mean of its divisors is an integer number (10942703100).
Almost surely, 2213990637080 is an apocalyptic number.
213990637080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
213990637080 is an abundant number, since it is smaller than the sum of its proper divisors (486342361320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
213990637080 is a wasteful number, since it uses less digits than its factorization.
213990637080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 162114144 (or 162114140 counting only the distinct ones).
The product of its (nonzero) digits is 489888, while the sum is 48.
The spelling of 213990637080 in words is "two hundred thirteen billion, nine hundred ninety million, six hundred thirty-seven thousand, eighty".
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