Base | Representation |
---|---|
bin | 1000000010011… |
… | …10101001101111 |
3 | 11200212211222022 |
4 | 10001032221233 |
5 | 114230243043 |
6 | 10405140355 |
7 | 1446103622 |
oct | 401165157 |
9 | 150784868 |
10 | 67431023 |
11 | 35076a20 |
12 | 1a6ba6bb |
13 | 10c7c41a |
14 | 8d53db9 |
15 | 5dbe868 |
hex | 404ea6f |
67431023 has 8 divisors (see below), whose sum is σ = 73689600. Its totient is φ = 61193880.
The previous prime is 67430971. The next prime is 67431059. The reversal of 67431023 is 32013476.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-67431023 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 67430983 and 67431001.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67431083) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1628 + ... + 11726.
It is an arithmetic number, because the mean of its divisors is an integer number (9211200).
Almost surely, 267431023 is an apocalyptic number.
67431023 is a deficient number, since it is larger than the sum of its proper divisors (6258577).
67431023 is a wasteful number, since it uses less digits than its factorization.
67431023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10717.
The product of its (nonzero) digits is 3024, while the sum is 26.
The square root of 67431023 is about 8211.6394830752. The cubic root of 67431023 is about 407.0239045658.
Adding to 67431023 its reverse (32013476), we get a palindrome (99444499).
The spelling of 67431023 in words is "sixty-seven million, four hundred thirty-one thousand, twenty-three".
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