Base | Representation |
---|---|
bin | 11010001101000010001011 |
3 | 110220222200021 |
4 | 122031002023 |
5 | 3224303011 |
6 | 403121311 |
7 | 112246423 |
oct | 32150213 |
9 | 13828607 |
10 | 6869131 |
11 | 3971975 |
12 | 2373237 |
13 | 1566799 |
14 | cab483 |
15 | 90a471 |
hex | 68d08b |
6869131 has 4 divisors (see below), whose sum is σ = 6907264. Its totient is φ = 6831000.
The previous prime is 6869113. The next prime is 6869183. The reversal of 6869131 is 1319686.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1319686 = 2 ⋅659843.
It is a cyclic number.
It is not a de Polignac number, because 6869131 - 217 = 6738059 is a prime.
It is a super-2 number, since 2×68691312 = 94369921390322, which contains 22 as substring.
It is a Duffinian number.
6869131 is a lucky number.
It is a plaindrome in base 13.
It is not an unprimeable number, because it can be changed into a prime (6869101) 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, 18795 + ... + 19156.
It is an arithmetic number, because the mean of its divisors is an integer number (1726816).
Almost surely, 26869131 is an apocalyptic number.
6869131 is a deficient number, since it is larger than the sum of its proper divisors (38133).
6869131 is a wasteful number, since it uses less digits than its factorization.
6869131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38132.
The product of its digits is 7776, while the sum is 34.
The square root of 6869131 is about 2620.9027070840. The cubic root of 6869131 is about 190.0934996873.
The spelling of 6869131 in words is "six million, eight hundred sixty-nine thousand, one hundred thirty-one".
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