Base | Representation |
---|---|
bin | 1000001001001… |
… | …10100100001001 |
3 | 11202112210010001 |
4 | 10010212210021 |
5 | 114442043101 |
6 | 10440123001 |
7 | 1456446160 |
oct | 404464411 |
9 | 152483101 |
10 | 68315401 |
11 | 35620410 |
12 | 1aa66461 |
13 | 111cbb1b |
14 | 91043d7 |
15 | 5ee6901 |
hex | 4126909 |
68315401 has 16 divisors (see below), whose sum is σ = 90184320. Its totient is φ = 50100480.
The previous prime is 68315353. The next prime is 68315407. The reversal of 68315401 is 10451386.
It is a cyclic number.
It is not a de Polignac number, because 68315401 - 29 = 68314889 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 68315401.
It is not an unprimeable number, because it can be changed into a prime (68315407) 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, 24786 + ... + 27403.
It is an arithmetic number, because the mean of its divisors is an integer number (5636520).
Almost surely, 268315401 is an apocalyptic number.
It is an amenable number.
68315401 is a deficient number, since it is larger than the sum of its proper divisors (21868919).
68315401 is a wasteful number, since it uses less digits than its factorization.
68315401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 52224.
The product of its (nonzero) digits is 2880, while the sum is 28.
The square root of 68315401 is about 8265.3131217154. The cubic root of 68315401 is about 408.7955949226.
Adding to 68315401 its reverse (10451386), we get a palindrome (78766787).
The spelling of 68315401 in words is "sixty-eight million, three hundred fifteen thousand, four hundred one".
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