Base | Representation |
---|---|
bin | 111001101001… |
… | …0011010110001 |
3 | 2002212102210101 |
4 | 1303102122301 |
5 | 30214101001 |
6 | 2555432401 |
7 | 514611535 |
oct | 163223261 |
9 | 62772711 |
10 | 30222001 |
11 | 16072267 |
12 | a155701 |
13 | 6352054 |
14 | 4029bc5 |
15 | 29bea01 |
hex | 1cd26b1 |
30222001 has 4 divisors (see below), whose sum is σ = 30320752. Its totient is φ = 30123252.
The previous prime is 30221969. The next prime is 30222011. The reversal of 30222001 is 10022203.
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: 10022203 = 359 ⋅27917.
It is a cyclic number.
It is not a de Polignac number, because 30222001 - 25 = 30221969 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (30222011) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48915 + ... + 49528.
It is an arithmetic number, because the mean of its divisors is an integer number (7580188).
Almost surely, 230222001 is an apocalyptic number.
It is an amenable number.
30222001 is a deficient number, since it is larger than the sum of its proper divisors (98751).
30222001 is an equidigital number, since it uses as much as digits as its factorization.
30222001 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 98750.
The product of its (nonzero) digits is 24, while the sum is 10.
The square root of 30222001 is about 5497.4540471022. The cubic root of 30222001 is about 311.4878218716.
Adding to 30222001 its reverse (10022203), we get a palindrome (40244204).
The spelling of 30222001 in words is "thirty million, two hundred twenty-two thousand, one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.063 sec. • engine limits •