Base | Representation |
---|---|
bin | 111001011101… |
… | …0001110010101 |
3 | 2002200101212000 |
4 | 1302322032111 |
5 | 30202413101 |
6 | 2553345513 |
7 | 514016604 |
oct | 162721625 |
9 | 62611760 |
10 | 30122901 |
11 | 16004866 |
12 | a108299 |
13 | 6318c03 |
14 | 4001a3b |
15 | 29a0486 |
hex | 1cba395 |
30122901 has 16 divisors (see below), whose sum is σ = 44740800. Its totient is φ = 20030544.
The previous prime is 30122899. The next prime is 30122927. The reversal of 30122901 is 10922103.
It is a happy number.
It is not a de Polignac number, because 30122901 - 21 = 30122899 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30122951) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11415 + ... + 13803.
It is an arithmetic number, because the mean of its divisors is an integer number (2796300).
Almost surely, 230122901 is an apocalyptic number.
It is an amenable number.
30122901 is a deficient number, since it is larger than the sum of its proper divisors (14617899).
30122901 is a wasteful number, since it uses less digits than its factorization.
30122901 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2865 (or 2859 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 18.
The square root of 30122901 is about 5488.4333830338. The cubic root of 30122901 is about 311.1469857960.
The spelling of 30122901 in words is "thirty million, one hundred twenty-two thousand, nine hundred one".
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