Base | Representation |
---|---|
bin | 111001010111… |
… | …1100011100111 |
3 | 2002121011220201 |
4 | 1302233203213 |
5 | 30200013312 |
6 | 2552411331 |
7 | 513445324 |
oct | 162574347 |
9 | 62534821 |
10 | 30079207 |
11 | 15a84a54 |
12 | a0a6b47 |
13 | 6302062 |
14 | 3dcdb4b |
15 | 2992557 |
hex | 1caf8e7 |
30079207 has 4 divisors (see below), whose sum is σ = 31049536. Its totient is φ = 29108880.
The previous prime is 30079169. The next prime is 30079213. The reversal of 30079207 is 70297003.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 30079207 - 219 = 29554919 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30079267) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485118 + ... + 485179.
It is an arithmetic number, because the mean of its divisors is an integer number (7762384).
Almost surely, 230079207 is an apocalyptic number.
30079207 is a deficient number, since it is larger than the sum of its proper divisors (970329).
30079207 is an equidigital number, since it uses as much as digits as its factorization.
30079207 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 970328.
The product of its (nonzero) digits is 2646, while the sum is 28.
The square root of 30079207 is about 5484.4513855079. The cubic root of 30079207 is about 310.9964709090.
It can be divided in two parts, 300 and 79207, that added together give a cube (79507 = 433).
The spelling of 30079207 in words is "thirty million, seventy-nine thousand, two hundred seven".
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