Base | Representation |
---|---|
bin | 111001010001… |
… | …1110010011110 |
3 | 2002111201210111 |
4 | 1302203302132 |
5 | 30141443011 |
6 | 2551400234 |
7 | 513154645 |
oct | 162436236 |
9 | 62451714 |
10 | 30031006 |
11 | 15a51815 |
12 | a08307a |
13 | 62b6135 |
14 | 3dba35c |
15 | 2983121 |
hex | 1ca3c9e |
30031006 has 8 divisors (see below), whose sum is σ = 45511200. Its totient is φ = 14860608.
The previous prime is 30030991. The next prime is 30031021. The reversal of 30031006 is 60013003.
It is an interprime number because it is at equal distance from previous prime (30030991) and next prime (30031021).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a super-2 number, since 2×300310062 = 1803722642744072, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77206 + ... + 77593.
It is an arithmetic number, because the mean of its divisors is an integer number (5688900).
Almost surely, 230031006 is an apocalyptic number.
30031006 is a deficient number, since it is larger than the sum of its proper divisors (15480194).
30031006 is a wasteful number, since it uses less digits than its factorization.
30031006 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 154898.
The product of its (nonzero) digits is 54, while the sum is 13.
The square root of 30031006 is about 5480.0552916919. The cubic root of 30031006 is about 310.8302613498.
Adding to 30031006 its reverse (60013003), we get a palindrome (90044009).
The spelling of 30031006 in words is "thirty million, thirty-one thousand, six".
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