Base | Representation |
---|---|
bin | 1011100100000110000111 |
3 | 12201000100020 |
4 | 23210012013 |
5 | 1234001211 |
6 | 144550223 |
7 | 34523664 |
oct | 13440607 |
9 | 5630306 |
10 | 3031431 |
11 | 1790617 |
12 | 1022373 |
13 | 821a60 |
14 | 58ca6b |
15 | 3ed306 |
hex | 2e4187 |
3031431 has 16 divisors (see below), whose sum is σ = 4583040. Its totient is φ = 1766880.
The previous prime is 3031421. The next prime is 3031463. The reversal of 3031431 is 1341303.
It is not a de Polignac number, because 3031431 - 210 = 3030407 is a prime.
It is a super-3 number, since 3×30314313 = 83572677662333507973, which contains 333 as substring. Note that it is a super-d number also for d = 2.
It is a self number, because there is not a number n which added to its sum of digits gives 3031431.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (3031421) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1305 + ... + 2786.
It is an arithmetic number, because the mean of its divisors is an integer number (286440).
Almost surely, 23031431 is an apocalyptic number.
3031431 is a deficient number, since it is larger than the sum of its proper divisors (1551609).
3031431 is a wasteful number, since it uses less digits than its factorization.
3031431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4126.
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 3031431 is about 1741.1005140428. The cubic root of 3031431 is about 144.7268897991.
Adding to 3031431 its reverse (1341303), we get a palindrome (4372734).
The spelling of 3031431 in words is "three million, thirty-one thousand, four hundred thirty-one".
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