Base | Representation |
---|---|
bin | 1000001100110… |
… | …11100010110110 |
3 | 11210110010101022 |
4 | 10012123202312 |
5 | 120102411200 |
6 | 10454301142 |
7 | 1463513126 |
oct | 406334266 |
9 | 153403338 |
10 | 68794550 |
11 | 35918400 |
12 | 1b0577b2 |
13 | 11338c46 |
14 | 91cac86 |
15 | 608d885 |
hex | 419b8b6 |
68794550 has 72 divisors (see below), whose sum is σ = 143381448. Its totient is φ = 24534400.
The previous prime is 68794547. The next prime is 68794553. The reversal of 68794550 is 5549786.
It is an interprime number because it is at equal distance from previous prime (68794547) and next prime (68794553).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68794553) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 502082 + ... + 502218.
It is an arithmetic number, because the mean of its divisors is an integer number (1991409).
Almost surely, 268794550 is an apocalyptic number.
68794550 is an abundant number, since it is smaller than the sum of its proper divisors (74586898).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68794550 is a wasteful number, since it uses less digits than its factorization.
68794550 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 254 (or 238 counting only the distinct ones).
The product of its (nonzero) digits is 302400, while the sum is 44.
The square root of 68794550 is about 8294.2480069021. The cubic root of 68794550 is about 409.7491028913.
The spelling of 68794550 in words is "sixty-eight million, seven hundred ninety-four thousand, five hundred fifty".
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