Base | Representation |
---|---|
bin | 111011000110… |
… | …0100000001111 |
3 | 2011022011100020 |
4 | 1312030200033 |
5 | 30412443312 |
6 | 3024033223 |
7 | 524234652 |
oct | 166144017 |
9 | 64264306 |
10 | 30984207 |
11 | 16542991 |
12 | a462813 |
13 | 655ac67 |
14 | 4187899 |
15 | 2ac078c |
hex | 1d8c80f |
30984207 has 8 divisors (see below), whose sum is σ = 42428976. Its totient is φ = 20097792.
The previous prime is 30984179. The next prime is 30984223. The reversal of 30984207 is 70248903.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 30984207 - 212 = 30980111 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30984257) 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, 139458 + ... + 139679.
It is an arithmetic number, because the mean of its divisors is an integer number (5303622).
Almost surely, 230984207 is an apocalyptic number.
30984207 is a gapful number since it is divisible by the number (37) formed by its first and last digit.
30984207 is a deficient number, since it is larger than the sum of its proper divisors (11444769).
30984207 is a wasteful number, since it uses less digits than its factorization.
30984207 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 279177.
The product of its (nonzero) digits is 12096, while the sum is 33.
The square root of 30984207 is about 5566.3459288837. The cubic root of 30984207 is about 314.0847101295.
The spelling of 30984207 in words is "thirty million, nine hundred eighty-four thousand, two hundred seven".
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