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30021422233 = 112729220203
BaseRepresentation
bin11011111101011010…
…101000110010011001
32212111020121021011011
4123331122220302121
5442440441002413
621442555133521
72111646610225
oct337532506231
985436537134
1030021422233
1111806345960
12599a1442a1
132aa595598a
14164b223785
15baa95b33d
hex6fd6a8c99

30021422233 has 4 divisors (see below), whose sum is σ = 32750642448. Its totient is φ = 27292202020.

The previous prime is 30021422213. The next prime is 30021422261. The reversal of 30021422233 is 33222412003.

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: 33222412003 = 113020219273.

It is a cyclic number.

It is not a de Polignac number, because 30021422233 - 217 = 30021291161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30021422213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1364610091 + ... + 1364610112.

It is an arithmetic number, because the mean of its divisors is an integer number (8187660612).

Almost surely, 230021422233 is an apocalyptic number.

It is an amenable number.

30021422233 is a deficient number, since it is larger than the sum of its proper divisors (2729220215).

30021422233 is a wasteful number, since it uses less digits than its factorization.

30021422233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729220214.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 30021422233 its reverse (33222412003), we get a palindrome (63243834236).

It can be divided in two parts, 30021 and 422233, that added together give a palindrome (452254).

The spelling of 30021422233 in words is "thirty billion, twenty-one million, four hundred twenty-two thousand, two hundred thirty-three".

Divisors: 1 11 2729220203 30021422233