Base | Representation |
---|---|
bin | 1000001011010… |
… | …00100000011101 |
3 | 11210001111121202 |
4 | 10011220200131 |
5 | 120024214001 |
6 | 10450005245 |
7 | 1461652505 |
oct | 405504035 |
9 | 153044552 |
10 | 68585501 |
11 | 35795336 |
12 | 1ab76825 |
13 | 11294a4a |
14 | 9174a05 |
15 | 604b96b |
hex | 416881d |
68585501 has 4 divisors (see below), whose sum is σ = 68663712. Its totient is φ = 68507292.
The previous prime is 68585483. The next prime is 68585513. The reversal of 68585501 is 10558586.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 68585501 - 26 = 68585437 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68585521) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37775 + ... + 39548.
It is an arithmetic number, because the mean of its divisors is an integer number (17165928).
Almost surely, 268585501 is an apocalyptic number.
It is an amenable number.
68585501 is a deficient number, since it is larger than the sum of its proper divisors (78211).
68585501 is an equidigital number, since it uses as much as digits as its factorization.
68585501 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 78210.
The product of its (nonzero) digits is 48000, while the sum is 38.
The square root of 68585501 is about 8281.6363721187. The cubic root of 68585501 is about 409.3336409550. Note that the first 3 decimals are identical.
The spelling of 68585501 in words is "sixty-eight million, five hundred eighty-five thousand, five hundred one".
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