Base | Representation |
---|---|
bin | 1100010011100110000… |
… | …1111010000000101100 |
3 | 202012201010101000101201 |
4 | 3010321201322000230 |
5 | 11430441124242210 |
6 | 241042510015244 |
7 | 21163102224433 |
oct | 3047141720054 |
9 | 665633330351 |
10 | 211418587180 |
11 | 8173130a809 |
12 | 34b837a7524 |
13 | 16c23b95438 |
14 | a3387d411a |
15 | 5775b4953a |
hex | 313987a02c |
211418587180 has 48 divisors (see below), whose sum is σ = 450322770240. Its totient is φ = 83359584000.
The previous prime is 211418587123. The next prime is 211418587207. The reversal of 211418587180 is 81785814112.
It is a self number, because there is not a number n which added to its sum of digits gives 211418587180.
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, 8935606 + ... + 8959234.
It is an arithmetic number, because the mean of its divisors is an integer number (9381724380).
Almost surely, 2211418587180 is an apocalyptic number.
211418587180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
211418587180 is an abundant number, since it is smaller than the sum of its proper divisors (238904183060).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
211418587180 is a wasteful number, since it uses less digits than its factorization.
211418587180 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 30010 (or 30008 counting only the distinct ones).
The product of its (nonzero) digits is 143360, while the sum is 46.
The spelling of 211418587180 in words is "two hundred eleven billion, four hundred eighteen million, five hundred eighty-seven thousand, one hundred eighty".
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