Base | Representation |
---|---|
bin | 1000001000011… |
… | …01110110101001 |
3 | 11202100122021022 |
4 | 10010031312221 |
5 | 114430323220 |
6 | 10434022225 |
7 | 1455545114 |
oct | 404156651 |
9 | 152318238 |
10 | 68214185 |
11 | 35561366 |
12 | 1aa17975 |
13 | 11194a30 |
14 | 90b957b |
15 | 5ec6925 |
hex | 410dda9 |
68214185 has 16 divisors (see below), whose sum is σ = 88542720. Its totient is φ = 50151360.
The previous prime is 68214169. The next prime is 68214187. The reversal of 68214185 is 58141286.
It is not a de Polignac number, because 68214185 - 24 = 68214169 is a prime.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (68214187) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13340 + ... + 17730.
It is an arithmetic number, because the mean of its divisors is an integer number (5533920).
Almost surely, 268214185 is an apocalyptic number.
68214185 is a gapful number since it is divisible by the number (65) formed by its first and last digit.
It is an amenable number.
68214185 is a deficient number, since it is larger than the sum of its proper divisors (20328535).
68214185 is a wasteful number, since it uses less digits than its factorization.
68214185 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4648.
The product of its digits is 15360, while the sum is 35.
The square root of 68214185 is about 8259.1879140748. The cubic root of 68214185 is about 408.5936048115.
The spelling of 68214185 in words is "sixty-eight million, two hundred fourteen thousand, one hundred eighty-five".
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