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212302011 = 3292440253
BaseRepresentation
bin11001010011101…
…11100010111011
3112210111001121110
430221313202323
5413322131021
633022211403
75155352205
oct1451674273
9483431543
10212302011
11a9925709
125b123b63
1334ca38bc
14202a5775
1513989476
hexca778bb

212302011 has 8 divisors (see below), whose sum is σ = 292830480. Its totient is φ = 136654112.

The previous prime is 212302009. The next prime is 212302019. The reversal of 212302011 is 110203212.

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 212302011 - 21 = 212302009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212302019) 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, 1220040 + ... + 1220213.

It is an arithmetic number, because the mean of its divisors is an integer number (36603810).

Almost surely, 2212302011 is an apocalyptic number.

212302011 is a deficient number, since it is larger than the sum of its proper divisors (80528469).

212302011 is a wasteful number, since it uses less digits than its factorization.

212302011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440285.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 212302011 is about 14570.5871878933. The cubic root of 212302011 is about 596.5562077530.

Adding to 212302011 its reverse (110203212), we get a palindrome (322505223).

It can be divided in two parts, 21 and 2302011, that added together give a palindrome (2302032).

The spelling of 212302011 in words is "two hundred twelve million, three hundred two thousand, eleven".

Divisors: 1 3 29 87 2440253 7320759 70767337 212302011