Base | Representation |
---|---|
bin | 101000100010111… |
… | …011001111111011 |
3 | 1202101222222122100 |
4 | 220202323033323 |
5 | 2343120303334 |
6 | 151255554443 |
7 | 22566660204 |
oct | 5042731773 |
9 | 1671888570 |
10 | 680244219 |
11 | 319a86606 |
12 | 16b98ba23 |
13 | aac13195 |
14 | 664b45ab |
15 | 3eabdc99 |
hex | 288bb3fb |
680244219 has 24 divisors (see below), whose sum is σ = 1015846832. Its totient is φ = 438359040.
The previous prime is 680244211. The next prime is 680244247. The reversal of 680244219 is 912442086.
It is not a de Polignac number, because 680244219 - 23 = 680244211 is a prime.
It is a super-2 number, since 2×6802442192 = 925464394965839922, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (680244211) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28479 + ... + 46599.
Almost surely, 2680244219 is an apocalyptic number.
680244219 is a deficient number, since it is larger than the sum of its proper divisors (335602613).
680244219 is a wasteful number, since it uses less digits than its factorization.
680244219 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18267 (or 18264 counting only the distinct ones).
The product of its (nonzero) digits is 27648, while the sum is 36.
The square root of 680244219 is about 26081.4918860099. The cubic root of 680244219 is about 879.4711952966.
The spelling of 680244219 in words is "six hundred eighty million, two hundred forty-four thousand, two hundred nineteen".
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