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212252299 = 771427067
BaseRepresentation
bin11001010011010…
…11011010001011
3112210101112102021
430221223122023
5413314033144
633021145311
75155054240
oct1451533213
9483345367
10212252299
11a98a1326
125b0bb237
1334c8709c
14202915c7
1513979884
hexca6b68b

212252299 has 8 divisors (see below), whose sum is σ = 245991168. Its totient is φ = 179367720.

The previous prime is 212252297. The next prime is 212252347. The reversal of 212252299 is 992252212.

It is a happy number.

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

It is not a de Polignac number, because 212252299 - 21 = 212252297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212252291) 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, 213037 + ... + 214030.

It is an arithmetic number, because the mean of its divisors is an integer number (30748896).

Almost surely, 2212252299 is an apocalyptic number.

212252299 is a deficient number, since it is larger than the sum of its proper divisors (33738869).

212252299 is an equidigital number, since it uses as much as digits as its factorization.

212252299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427145.

The product of its digits is 12960, while the sum is 34.

The square root of 212252299 is about 14568.8811855956. The cubic root of 212252299 is about 596.5096415161.

The spelling of 212252299 in words is "two hundred twelve million, two hundred fifty-two thousand, two hundred ninety-nine".

Divisors: 1 7 71 497 427067 2989469 30321757 212252299