Base | Representation |
---|---|
bin | 101001000111100… |
… | …001001100110000 |
3 | 1210002001100020220 |
4 | 221013201030300 |
5 | 2403044234343 |
6 | 152241333040 |
7 | 23044342101 |
oct | 5107411460 |
9 | 1702040226 |
10 | 689836848 |
11 | 3244386a8 |
12 | 173037180 |
13 | acbc14ac |
14 | 678903a8 |
15 | 40866183 |
hex | 291e1330 |
689836848 has 40 divisors (see below), whose sum is σ = 1804646400. Its totient is φ = 227033664.
The previous prime is 689836841. The next prime is 689836853. The reversal of 689836848 is 848638986.
It is a junction number, because it is equal to n+sod(n) for n = 689836791 and 689836800.
It is not an unprimeable number, because it can be changed into a prime (689836841) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87168 + ... + 94751.
It is an arithmetic number, because the mean of its divisors is an integer number (45116160).
Almost surely, 2689836848 is an apocalyptic number.
It is an amenable number.
689836848 is an abundant number, since it is smaller than the sum of its proper divisors (1114809552).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
689836848 is a wasteful number, since it uses less digits than its factorization.
689836848 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 182009 (or 182003 counting only the distinct ones).
The product of its digits is 15925248, while the sum is 60.
The square root of 689836848 is about 26264.7453442823. The cubic root of 689836848 is about 883.5859393216.
The spelling of 689836848 in words is "six hundred eighty-nine million, eight hundred thirty-six thousand, eight hundred forty-eight".
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