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212220627 = 3421168029
BaseRepresentation
bin11001010011000…
…11101011010011
3112210022220222020
430221203223103
5413312030002
633020342523
75154563013
oct1451435323
9483286866
10212220627
11a987a553
125b0a4a43
1334c75848
1420283c43
15139702bc
hexca63ad3

212220627 has 8 divisors (see below), whose sum is σ = 283634640. Its totient is φ = 141143520.

The previous prime is 212220607. The next prime is 212220629. The reversal of 212220627 is 726022212.

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

It is not a de Polignac number, because 212220627 - 214 = 212204243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212220597 and 212220606.

It is not an unprimeable number, because it can be changed into a prime (212220629) 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, 82752 + ... + 85277.

It is an arithmetic number, because the mean of its divisors is an integer number (35454330).

Almost surely, 2212220627 is an apocalyptic number.

212220627 is a deficient number, since it is larger than the sum of its proper divisors (71414013).

212220627 is a wasteful number, since it uses less digits than its factorization.

212220627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168453.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 212220627 is about 14567.7941707041. The cubic root of 212220627 is about 596.4799699205.

Adding to 212220627 its reverse (726022212), we get a palindrome (938242839).

The spelling of 212220627 in words is "two hundred twelve million, two hundred twenty thousand, six hundred twenty-seven".

Divisors: 1 3 421 1263 168029 504087 70740209 212220627