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212422033 = 1911398939
BaseRepresentation
bin11001010100101…
…00110110010001
3112210201011020201
430222110312101
5413340001113
633024535201
75156362135
oct1452246621
9483634221
10212422033
11a99a78aa
125b181501
1335016415
14202d73c5
15139aecdd
hexca94d91

212422033 has 8 divisors (see below), whose sum is σ = 225583200. Its totient is φ = 199459008.

The previous prime is 212421977. The next prime is 212422051. The reversal of 212422033 is 330224212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-212422033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 212422033.

It is not an unprimeable number, because it can be changed into a prime (212422333) 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 7 ways as a sum of consecutive naturals, for example, 47323 + ... + 51616.

It is an arithmetic number, because the mean of its divisors is an integer number (28197900).

Almost surely, 2212422033 is an apocalyptic number.

It is an amenable number.

212422033 is a deficient number, since it is larger than the sum of its proper divisors (13161167).

212422033 is a wasteful number, since it uses less digits than its factorization.

212422033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99071.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 212422033 is about 14574.7052457331. The cubic root of 212422033 is about 596.6686048368.

Adding to 212422033 its reverse (330224212), we get a palindrome (542646245).

The spelling of 212422033 in words is "two hundred twelve million, four hundred twenty-two thousand, thirty-three".

Divisors: 1 19 113 2147 98939 1879841 11180107 212422033