Base | Representation |
---|---|
bin | 1000001111010… |
… | …10000001000000 |
3 | 11211001110021200 |
4 | 10013222001000 |
5 | 120143202333 |
6 | 10505221200 |
7 | 1466322165 |
oct | 407520100 |
9 | 154043250 |
10 | 69115968 |
11 | 36017939 |
12 | 1b191800 |
13 | 1141c32c |
14 | 927206c |
15 | 6103c13 |
hex | 41ea040 |
69115968 has 42 divisors (see below), whose sum is σ = 198110094. Its totient is φ = 23038464.
The previous prime is 69115967. The next prime is 69115973. The reversal of 69115968 is 86951196.
It can be written as a sum of positive squares in only one way, i.e., 44195904 + 24920064 = 6648^2 + 4992^2 .
It is not an unprimeable number, because it can be changed into a prime (69115967) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59421 + ... + 60572.
It is an arithmetic number, because the mean of its divisors is an integer number (4716907).
Almost surely, 269115968 is an apocalyptic number.
It is an amenable number.
69115968 is an abundant number, since it is smaller than the sum of its proper divisors (128994126).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
69115968 is a wasteful number, since it uses less digits than its factorization.
69115968 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 120011 (or 119998 counting only the distinct ones).
The product of its digits is 116640, while the sum is 45.
The square root of 69115968 is about 8313.6013856812. The cubic root of 69115968 is about 410.3862471595.
The spelling of 69115968 in words is "sixty-nine million, one hundred fifteen thousand, nine hundred sixty-eight".
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