Search a number
-
+
30221100101 = 97757411569
BaseRepresentation
bin11100001001010100…
…010110010001000101
32220000011022221200202
4130021110112101011
5443343100200401
621514451020245
72116623053363
oct341124262105
986004287622
1030221100101
11118a9028895
125a34b9a685
132b0812946a
141669960633
15bbd25006b
hex709516445

30221100101 has 8 divisors (see below), whose sum is σ = 30573065880. Its totient is φ = 29869959168.

The previous prime is 30221100097. The next prime is 30221100127. The reversal of 30221100101 is 10100112203.

It can be written as a sum of positive squares in 4 ways, for example, as 2806350625 + 27414749476 = 52975^2 + 165574^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30221100101 - 22 = 30221100097 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 (30221100181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132356 + ... + 279213.

It is an arithmetic number, because the mean of its divisors is an integer number (3821633235).

Almost surely, 230221100101 is an apocalyptic number.

It is an amenable number.

30221100101 is a deficient number, since it is larger than the sum of its proper divisors (351965779).

30221100101 is an equidigital number, since it uses as much as digits as its factorization.

30221100101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412423.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 30221100101 its reverse (10100112203), we get a palindrome (40321212304).

The spelling of 30221100101 in words is "thirty billion, two hundred twenty-one million, one hundred thousand, one hundred one".

Divisors: 1 97 757 73429 411569 39922193 311557733 30221100101