Base | Representation |
---|---|
bin | 111010100000… |
… | …0100011101011 |
3 | 2010201100121220 |
4 | 1311000203223 |
5 | 30323020011 |
6 | 3013233123 |
7 | 521501016 |
oct | 165004353 |
9 | 63640556 |
10 | 30673131 |
11 | 163501a5 |
12 | a3327a3 |
13 | 647c4a8 |
14 | 410637d |
15 | 2a5d506 |
hex | 1d408eb |
30673131 has 8 divisors (see below), whose sum is σ = 40936080. Its totient is φ = 20429472.
The previous prime is 30673121. The next prime is 30673133. The reversal of 30673131 is 13137603.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30673131 - 27 = 30673003 is a prime.
It is a super-2 number, since 2×306731312 = 1881681930686322, which contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (30673133) 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, 576 + ... + 7853.
It is an arithmetic number, because the mean of its divisors is an integer number (5117010).
Almost surely, 230673131 is an apocalyptic number.
30673131 is a deficient number, since it is larger than the sum of its proper divisors (10262949).
30673131 is a wasteful number, since it uses less digits than its factorization.
30673131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9645.
The product of its (nonzero) digits is 1134, while the sum is 24.
The square root of 30673131 is about 5538.3328719029. The cubic root of 30673131 is about 313.0300542410.
It can be divided in two parts, 306 and 73131, that added together give a palindrome (73437).
The spelling of 30673131 in words is "thirty million, six hundred seventy-three thousand, one hundred thirty-one".
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