Base | Representation |
---|---|
bin | 1000001011010… |
… | …10100011000101 |
3 | 11210001221002101 |
4 | 10011222203011 |
5 | 120030000421 |
6 | 10450112101 |
7 | 1462016050 |
oct | 405524305 |
9 | 153057071 |
10 | 68593861 |
11 | 357a0646 |
12 | 1ab7b631 |
13 | 112987ab |
14 | 9177a97 |
15 | 604e191 |
hex | 416a8c5 |
68593861 has 24 divisors (see below), whose sum is σ = 85409856. Its totient is φ = 53921280.
The previous prime is 68593817. The next prime is 68593871. The reversal of 68593861 is 16839586.
It is not a de Polignac number, because 68593861 - 211 = 68591813 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68593871) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82530 + ... + 83356.
It is an arithmetic number, because the mean of its divisors is an integer number (3558744).
Almost surely, 268593861 is an apocalyptic number.
It is an amenable number.
68593861 is a deficient number, since it is larger than the sum of its proper divisors (16815995).
68593861 is a wasteful number, since it uses less digits than its factorization.
68593861 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 909 (or 892 counting only the distinct ones).
The product of its digits is 311040, while the sum is 46.
The square root of 68593861 is about 8282.1410879072. The cubic root of 68593861 is about 409.3502717305.
The spelling of 68593861 in words is "sixty-eight million, five hundred ninety-three thousand, eight hundred sixty-one".
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