Base | Representation |
---|---|
bin | 1000000001000… |
… | …10000001100111 |
3 | 11200112120020020 |
4 | 10000202001213 |
5 | 114203420411 |
6 | 10401210223 |
7 | 1444412661 |
oct | 400420147 |
9 | 150476206 |
10 | 67248231 |
11 | 34a61656 |
12 | 1a630973 |
13 | 10c1716b |
14 | 8d07531 |
15 | 5d85606 |
hex | 4022067 |
67248231 has 8 divisors (see below), whose sum is σ = 90319344. Its totient is φ = 44504640.
The previous prime is 67248229. The next prime is 67248263. The reversal of 67248231 is 13284276.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 67248231 - 21 = 67248229 is a prime.
It is a super-2 number, since 2×672482312 = 9044649145258722, which contains 22 as substring.
It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a junction number, because it is equal to n+sod(n) for n = 67248192 and 67248201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67248131) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81400 + ... + 82221.
It is an arithmetic number, because the mean of its divisors is an integer number (11289918).
Almost surely, 267248231 is an apocalyptic number.
67248231 is a deficient number, since it is larger than the sum of its proper divisors (23071113).
67248231 is a wasteful number, since it uses less digits than its factorization.
67248231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 163761.
The product of its digits is 16128, while the sum is 33.
The square root of 67248231 is about 8200.5018748855. The cubic root of 67248231 is about 406.6557849667.
The spelling of 67248231 in words is "sixty-seven million, two hundred forty-eight thousand, two hundred thirty-one".
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