Base | Representation |
---|---|
bin | 1000001011111… |
… | …01011110101001 |
3 | 11210012212110020 |
4 | 10011331132221 |
5 | 120034441101 |
6 | 10451511053 |
7 | 1462461111 |
oct | 405753651 |
9 | 153185406 |
10 | 68671401 |
11 | 35843927 |
12 | 1abb8489 |
13 | 112c4b86 |
14 | 9198041 |
15 | 6067136 |
hex | 417d7a9 |
68671401 has 4 divisors (see below), whose sum is σ = 91561872. Its totient is φ = 45780932.
The previous prime is 68671373. The next prime is 68671403. The reversal of 68671401 is 10417686.
It is a happy number.
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 68671401 - 213 = 68663209 is a prime.
It is a super-2 number, since 2×686714012 = 9431522630605602, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (68671403) 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, 11445231 + ... + 11445236.
It is an arithmetic number, because the mean of its divisors is an integer number (22890468).
Almost surely, 268671401 is an apocalyptic number.
It is an amenable number.
68671401 is a deficient number, since it is larger than the sum of its proper divisors (22890471).
68671401 is a wasteful number, since it uses less digits than its factorization.
68671401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22890470.
The product of its (nonzero) digits is 8064, while the sum is 33.
The square root of 68671401 is about 8286.8209224044. The cubic root of 68671401 is about 409.5044598112.
The spelling of 68671401 in words is "sixty-eight million, six hundred seventy-one thousand, four hundred one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •