Base | Representation |
---|---|
bin | 11100001000000011… |
… | …111001100111010101 |
3 | 2212221200122112012010 |
4 | 130020003321213111 |
5 | 443322200324341 |
6 | 21512415014433 |
7 | 2116245600642 |
oct | 341003714725 |
9 | 85850575163 |
10 | 30200011221 |
11 | 11898134466 |
12 | 5a29b0a419 |
13 | 2b03954533 |
14 | 1666c30dc9 |
15 | bbb486716 |
hex | 7080f99d5 |
30200011221 has 4 divisors (see below), whose sum is σ = 40266681632. Its totient is φ = 20133340812.
The previous prime is 30200011201. The next prime is 30200011273. The reversal of 30200011221 is 12211000203.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12211000203 = 3 ⋅4070333401.
It is not a de Polignac number, because 30200011221 - 25 = 30200011189 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 30200011197 and 30200011206.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30200011201) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5033335201 + ... + 5033335206.
It is an arithmetic number, because the mean of its divisors is an integer number (10066670408).
Almost surely, 230200011221 is an apocalyptic number.
It is an amenable number.
30200011221 is a deficient number, since it is larger than the sum of its proper divisors (10066670411).
30200011221 is a wasteful number, since it uses less digits than its factorization.
30200011221 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10066670410.
The product of its (nonzero) digits is 24, while the sum is 12.
Adding to 30200011221 its reverse (12211000203), we get a palindrome (42411011424).
The spelling of 30200011221 in words is "thirty billion, two hundred million, eleven thousand, two hundred twenty-one".
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