Base | Representation |
---|---|
bin | 1000001010000… |
… | …01011010000111 |
3 | 11202202100221021 |
4 | 10011001122013 |
5 | 120004102401 |
6 | 10442332011 |
7 | 1460414551 |
oct | 405013207 |
9 | 152670837 |
10 | 68425351 |
11 | 35695a85 |
12 | 1aaba007 |
13 | 11239b97 |
14 | 91324d1 |
15 | 60192a1 |
hex | 4141687 |
68425351 has 4 divisors (see below), whose sum is σ = 70094304. Its totient is φ = 66756400.
The previous prime is 68425271. The next prime is 68425367. The reversal of 68425351 is 15352486.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15352486 = 2 ⋅7676243.
It is a cyclic number.
It is not a de Polignac number, because 68425351 - 217 = 68294279 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68425151) 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, 834415 + ... + 834496.
It is an arithmetic number, because the mean of its divisors is an integer number (17523576).
Almost surely, 268425351 is an apocalyptic number.
68425351 is a deficient number, since it is larger than the sum of its proper divisors (1668953).
68425351 is a wasteful number, since it uses less digits than its factorization.
68425351 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1668952.
The product of its digits is 28800, while the sum is 34.
The square root of 68425351 is about 8271.9617383061. The cubic root of 68425351 is about 409.0147889512.
The spelling of 68425351 in words is "sixty-eight million, four hundred twenty-five thousand, three hundred fifty-one".
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