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13222101 = 34407367
BaseRepresentation
bin110010011100…
…000011010101
3220212202022110
4302130003111
511341101401
61151221233
7220246254
oct62340325
926782273
1013222101
117510a62
124517819
13297c339
141a8279b
1512629d6
hexc9c0d5

13222101 has 4 divisors (see below), whose sum is σ = 17629472. Its totient is φ = 8814732.

The previous prime is 13222093. The next prime is 13222103. The reversal of 13222101 is 10122231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13222101 - 23 = 13222093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2203681 + ... + 2203686.

It is an arithmetic number, because the mean of its divisors is an integer number (4407368).

Almost surely, 213222101 is an apocalyptic number.

It is an amenable number.

13222101 is a deficient number, since it is larger than the sum of its proper divisors (4407371).

13222101 is an equidigital number, since it uses as much as digits as its factorization.

13222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4407370.

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

The square root of 13222101 is about 3636.2207028727. The cubic root of 13222101 is about 236.4649755117.

Adding to 13222101 its reverse (10122231), we get a palindrome (23344332).

The spelling of 13222101 in words is "thirteen million, two hundred twenty-two thousand, one hundred one".

Divisors: 1 3 4407367 13222101