Base | Representation |
---|---|
bin | 1000001011110… |
… | …10111100100000 |
3 | 11210012100012220 |
4 | 10011322330200 |
5 | 120034123044 |
6 | 10451351040 |
7 | 1462415625 |
oct | 405727440 |
9 | 153170186 |
10 | 68661024 |
11 | 35837053 |
12 | 1abb2480 |
13 | 112c0233 |
14 | 919434c |
15 | 6064019 |
hex | 417af20 |
68661024 has 48 divisors (see below), whose sum is σ = 184437792. Its totient is φ = 22353408.
The previous prime is 68661017. The next prime is 68661077. The reversal of 68661024 is 42016686.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (48).
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4189 + ... + 12444.
It is an arithmetic number, because the mean of its divisors is an integer number (3842454).
Almost surely, 268661024 is an apocalyptic number.
It is an amenable number.
68661024 is an abundant number, since it is smaller than the sum of its proper divisors (115776768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68661024 is a wasteful number, since it uses less digits than its factorization.
68661024 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16689 (or 16681 counting only the distinct ones).
The product of its (nonzero) digits is 13824, while the sum is 33.
The square root of 68661024 is about 8286.1947840972. The cubic root of 68661024 is about 409.4838319041.
The spelling of 68661024 in words is "sixty-eight million, six hundred sixty-one thousand, twenty-four".
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