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10212223 = 71785817
BaseRepresentation
bin100110111101…
…001101111111
3201012211112111
4212331031333
510103242343
61002514451
7152542150
oct46751577
921184474
1010212223
11584565a
123505a27
132167348
1414db927
15d6ac9d
hex9bd37f

10212223 has 8 divisors (see below), whose sum is σ = 12357792. Its totient is φ = 8238336.

The previous prime is 10212203. The next prime is 10212233. The reversal of 10212223 is 32221201.

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

It is not a de Polignac number, because 10212223 - 29 = 10211711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212203) 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, 42790 + ... + 43027.

It is an arithmetic number, because the mean of its divisors is an integer number (1544724).

Almost surely, 210212223 is an apocalyptic number.

10212223 is a deficient number, since it is larger than the sum of its proper divisors (2145569).

10212223 is an equidigital number, since it uses as much as digits as its factorization.

10212223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85841.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 10212223 is about 3195.6568964768. The cubic root of 10212223 is about 216.9568815770.

Adding to 10212223 its reverse (32221201), we get a palindrome (42433424).

The spelling of 10212223 in words is "ten million, two hundred twelve thousand, two hundred twenty-three".

Divisors: 1 7 17 119 85817 600719 1458889 10212223