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212450122 = 21718773329
BaseRepresentation
bin11001010100110…
…11101101001010
3112210202120210001
430222123231022
5413341400442
633025313214
75156540053
oct1452335512
9483676701
10212450122
11a9a16a15
125b19580a
1335026141
142030372a
15139b82b7
hexca9bb4a

212450122 has 16 divisors (see below), whose sum is σ = 337701960. Its totient is φ = 99893248.

The previous prime is 212450107. The next prime is 212450123. The reversal of 212450122 is 221054212.

212450122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 200760561 + 11689561 = 14169^2 + 3419^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 212450122.

It is not an unprimeable number, because it can be changed into a prime (212450123) 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, 62154 + ... + 65482.

Almost surely, 2212450122 is an apocalyptic number.

212450122 is a deficient number, since it is larger than the sum of its proper divisors (125251838).

212450122 is a wasteful number, since it uses less digits than its factorization.

212450122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5225.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 212450122 is about 14575.6688354257. The cubic root of 212450122 is about 596.6949032478.

The spelling of 212450122 in words is "two hundred twelve million, four hundred fifty thousand, one hundred twenty-two".

Divisors: 1 2 17 34 1877 3329 3754 6658 31909 56593 63818 113186 6248533 12497066 106225061 212450122