Search a number
-
+
30221022001 = 281701153421
BaseRepresentation
bin11100001001010100…
…000011001100110001
32220000011011222120011
4130021110003030301
5443343040201001
621514445214521
72116622306602
oct341124031461
986004158504
1030221022001
11118a8a85145
125a34b61441
132b080cca51
14166993dda9
15bbd236d51
hex709503331

30221022001 has 8 divisors (see below), whose sum is σ = 30372032808. Its totient is φ = 30070320000.

The previous prime is 30221021983. The next prime is 30221022011. The reversal of 30221022001 is 10022012203.

It can be written as a sum of positive squares in 4 ways, for example, as 7177478400 + 23043543601 = 84720^2 + 151801^2 .

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 30221022001 - 211 = 30221019953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30221022011) 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, 120271 + ... + 273691.

It is an arithmetic number, because the mean of its divisors is an integer number (3796504101).

Almost surely, 230221022001 is an apocalyptic number.

It is an amenable number.

30221022001 is a deficient number, since it is larger than the sum of its proper divisors (151010807).

30221022001 is a wasteful number, since it uses less digits than its factorization.

30221022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154403.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 30221022001 its reverse (10022012203), we get a palindrome (40243034204).

The spelling of 30221022001 in words is "thirty billion, two hundred twenty-one million, twenty-two thousand, one".

Divisors: 1 281 701 153421 196981 43111301 107548121 30221022001