Base | Representation |
---|---|
bin | 1000001000001… |
… | …01110000111000 |
3 | 11202021221211000 |
4 | 10010011300320 |
5 | 114423243143 |
6 | 10433205000 |
7 | 1455346365 |
oct | 404056070 |
9 | 152257730 |
10 | 68181048 |
11 | 35539481 |
12 | 1aa00760 |
13 | 11182920 |
14 | 90ab46c |
15 | 5ebbbd3 |
hex | 4105c38 |
68181048 has 64 divisors (see below), whose sum is σ = 203968800. Its totient is φ = 20977920.
The previous prime is 68181019. The next prime is 68181053. The reversal of 68181048 is 84018186.
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9333 + ... + 14948.
Almost surely, 268181048 is an apocalyptic number.
It is an amenable number.
68181048 is an abundant number, since it is smaller than the sum of its proper divisors (135787752).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68181048 is a wasteful number, since it uses less digits than its factorization.
68181048 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24309 (or 24299 counting only the distinct ones).
The product of its (nonzero) digits is 12288, while the sum is 36.
The square root of 68181048 is about 8257.1816014909. The cubic root of 68181048 is about 408.5274320681.
The spelling of 68181048 in words is "sixty-eight million, one hundred eighty-one thousand, forty-eight".
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