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30211222033 = 291041766277
BaseRepresentation
bin11100001000101110…
…101010101000010001
32212222110202002112101
4130020232222220101
5443333033101113
621513455200401
72116443102346
oct341056525021
985873662471
1030211222033
11118a34a12a3
125a31816101
132b0607b255
14166850c7cd
15bbc44d2dd
hex708baaa11

30211222033 has 4 divisors (see below), whose sum is σ = 31252988340. Its totient is φ = 29169455728.

The previous prime is 30211222031. The next prime is 30211222057. The reversal of 30211222033 is 33022211203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6398720064 + 23812501969 = 79992^2 + 154313^2 .

It is a cyclic number.

It is not a de Polignac number, because 30211222033 - 21 = 30211222031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30211222033.

It is not an unprimeable number, because it can be changed into a prime (30211222031) 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, 520883110 + ... + 520883167.

It is an arithmetic number, because the mean of its divisors is an integer number (7813247085).

Almost surely, 230211222033 is an apocalyptic number.

It is an amenable number.

30211222033 is a deficient number, since it is larger than the sum of its proper divisors (1041766307).

30211222033 is a wasteful number, since it uses less digits than its factorization.

30211222033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041766306.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30211222033 its reverse (33022211203), we get a palindrome (63233433236).

The spelling of 30211222033 in words is "thirty billion, two hundred eleven million, two hundred twenty-two thousand, thirty-three".

Divisors: 1 29 1041766277 30211222033