Base | Representation |
---|---|
bin | 111001010110… |
… | …1001001100111 |
3 | 2002120200101200 |
4 | 1302231021213 |
5 | 30144204401 |
6 | 2552253543 |
7 | 513404514 |
oct | 162551147 |
9 | 62520350 |
10 | 30069351 |
11 | 15a78604 |
12 | a0a12b3 |
13 | 62ca720 |
14 | 3dca30b |
15 | 298e686 |
hex | 1cad267 |
30069351 has 12 divisors (see below), whose sum is σ = 46774728. Its totient is φ = 18504144.
The previous prime is 30069313. The next prime is 30069353. The reversal of 30069351 is 15396003.
30069351 is a `hidden beast` number, since 300 + 6 + 9 + 351 = 666.
It is not a de Polignac number, because 30069351 - 27 = 30069223 is a prime.
It is a super-2 number, since 2×300693512 = 1808331739122402, which contains 22 as substring.
It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30069353) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128385 + ... + 128618.
It is an arithmetic number, because the mean of its divisors is an integer number (3897894).
Almost surely, 230069351 is an apocalyptic number.
30069351 is a deficient number, since it is larger than the sum of its proper divisors (16705377).
30069351 is a wasteful number, since it uses less digits than its factorization.
30069351 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 257022 (or 257019 counting only the distinct ones).
The product of its (nonzero) digits is 2430, while the sum is 27.
The square root of 30069351 is about 5483.5527716983. The cubic root of 30069351 is about 310.9624993124.
The spelling of 30069351 in words is "thirty million, sixty-nine thousand, three hundred fifty-one".
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