Base | Representation |
---|---|
bin | 1000001000000… |
… | …01110110001000 |
3 | 11202021010210122 |
4 | 10010001312020 |
5 | 114422240000 |
6 | 10433002412 |
7 | 1455251531 |
oct | 404016610 |
9 | 152233718 |
10 | 68165000 |
11 | 35528412 |
12 | 1a9b3408 |
13 | 11178527 |
14 | 90a5688 |
15 | 5eb7085 |
hex | 4101d88 |
68165000 has 40 divisors (see below), whose sum is σ = 159722310. Its totient is φ = 27264000.
The previous prime is 68164981. The next prime is 68165017. The reversal of 68165000 is 56186.
It can be written as a sum of positive squares in 5 ways, for example, as 3104644 + 65060356 = 1762^2 + 8066^2 .
It is a tau number, because it is divible by the number of its divisors (40).
It is an unprimeable number.
It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1817 + ... + 11816.
Almost surely, 268165000 is an apocalyptic number.
It is an amenable number.
68165000 is an abundant number, since it is smaller than the sum of its proper divisors (91557310).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68165000 is a wasteful number, since it uses less digits than its factorization.
68165000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 13659 (or 13640 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 26.
The square root of 68165000 is about 8256.2097841564. The cubic root of 68165000 is about 408.4953773996.
The spelling of 68165000 in words is "sixty-eight million, one hundred sixty-five thousand".
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