Base | Representation |
---|---|
bin | 111011111011… |
… | …0111101001010 |
3 | 2012010022110101 |
4 | 1313312331022 |
5 | 31020421414 |
6 | 3041240014 |
7 | 531032116 |
oct | 167667512 |
9 | 65108411 |
10 | 31420234 |
11 | 1681053a |
12 | a63300a |
13 | 6681571 |
14 | 425c746 |
15 | 2b59a74 |
hex | 1df6f4a |
31420234 has 4 divisors (see below), whose sum is σ = 47130354. Its totient is φ = 15710116.
The previous prime is 31420223. The next prime is 31420303. The reversal of 31420234 is 43202413.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in only one way, i.e., 23280625 + 8139609 = 4825^2 + 2853^2 .
It is a super-2 number, since 2×314202342 = 1974462209229512, which contains 22 as substring.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7855057 + ... + 7855060.
Almost surely, 231420234 is an apocalyptic number.
31420234 is a deficient number, since it is larger than the sum of its proper divisors (15710120).
31420234 is a wasteful number, since it uses less digits than its factorization.
31420234 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15710119.
The product of its (nonzero) digits is 576, while the sum is 19.
The square root of 31420234 is about 5605.3754557567. The cubic root of 31420234 is about 315.5511774411.
Adding to 31420234 its reverse (43202413), we get a palindrome (74622647).
The spelling of 31420234 in words is "thirty-one million, four hundred twenty thousand, two hundred thirty-four".
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