Base | Representation |
---|---|
bin | 1000001000011… |
… | …01001011000011 |
3 | 11202100111102222 |
4 | 10010031023003 |
5 | 114430231040 |
6 | 10434001255 |
7 | 1455534020 |
oct | 404151303 |
9 | 152314388 |
10 | 68211395 |
11 | 3555a25a |
12 | 1aa1622b |
13 | 11193695 |
14 | 90b8547 |
15 | 5ec5bb5 |
hex | 410d2c3 |
68211395 has 16 divisors (see below), whose sum is σ = 99050688. Its totient is φ = 44021760.
The previous prime is 68211383. The next prime is 68211397. The reversal of 68211395 is 59311286.
It is not a de Polignac number, because 68211395 - 24 = 68211379 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (35).
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (68211397) 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, 56726 + ... + 57915.
It is an arithmetic number, because the mean of its divisors is an integer number (6190668).
Almost surely, 268211395 is an apocalyptic number.
68211395 is a deficient number, since it is larger than the sum of its proper divisors (30839293).
68211395 is a wasteful number, since it uses less digits than its factorization.
68211395 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 114670.
The product of its digits is 12960, while the sum is 35.
The square root of 68211395 is about 8259.0190095434. The cubic root of 68211395 is about 408.5880341632.
The spelling of 68211395 in words is "sixty-eight million, two hundred eleven thousand, three hundred ninety-five".
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