Base | Representation |
---|---|
bin | 1000000001000… |
… | …00101101110111 |
3 | 11200112021212201 |
4 | 10000200231313 |
5 | 114203232441 |
6 | 10401125331 |
7 | 1444361233 |
oct | 400405567 |
9 | 150467781 |
10 | 67242871 |
11 | 34a58623 |
12 | 1a629847 |
13 | 10c148a7 |
14 | 8d055c3 |
15 | 5d83c31 |
hex | 4020b77 |
67242871 has 8 divisors (see below), whose sum is σ = 71905104. Its totient is φ = 62659200.
The previous prime is 67242859. The next prime is 67242883. The reversal of 67242871 is 17824276.
It is an interprime number because it is at equal distance from previous prime (67242859) and next prime (67242883).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 67242871 - 25 = 67242839 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 67242871.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67242811) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17865 + ... + 21298.
It is an arithmetic number, because the mean of its divisors is an integer number (8988138).
Almost surely, 267242871 is an apocalyptic number.
67242871 is a deficient number, since it is larger than the sum of its proper divisors (4662233).
67242871 is a wasteful number, since it uses less digits than its factorization.
67242871 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 39281.
The product of its digits is 37632, while the sum is 37.
The square root of 67242871 is about 8200.1750591070. The cubic root of 67242871 is about 406.6449805540.
The spelling of 67242871 in words is "sixty-seven million, two hundred forty-two thousand, eight hundred seventy-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •