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212300029 = 1729534229
BaseRepresentation
bin11001010011101…
…11000011111101
3112210110221220001
430221313003331
5413322100104
633022154301
75155343344
oct1451670375
9483427801
10212300029
11a9924177
125b122991
1334ca2a26
14202a4b5b
1513988aa4
hexca770fd

212300029 has 8 divisors (see below), whose sum is σ = 224917560. Its totient is φ = 199696896.

The previous prime is 212300021. The next prime is 212300057. The reversal of 212300029 is 920003212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 163788804 + 48511225 = 12798^2 + 6965^2 .

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 212300029 - 23 = 212300021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212299979 and 212300015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212300021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48087 + ... + 52315.

It is an arithmetic number, because the mean of its divisors is an integer number (28114695).

Almost surely, 2212300029 is an apocalyptic number.

It is an amenable number.

212300029 is a deficient number, since it is larger than the sum of its proper divisors (12617531).

212300029 is a wasteful number, since it uses less digits than its factorization.

212300029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7199.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 212300029 is about 14570.5191740034. The cubic root of 212300029 is about 596.5543513127.

The spelling of 212300029 in words is "two hundred twelve million, three hundred thousand, twenty-nine".

Divisors: 1 17 2953 4229 50201 71893 12488237 212300029