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22200049 = 27181919
BaseRepresentation
bin101010010101…
…1111011110001
31112202212202001
41110223323301
521140400144
62111454001
7356461114
oct124537361
945685661
1022200049
1111593253
127527301
1347a3931
142d3c57b
151e37bd4
hex152bef1

22200049 has 4 divisors (see below), whose sum is σ = 22282240. Its totient is φ = 22117860.

The previous prime is 22200047. The next prime is 22200077. The reversal of 22200049 is 94000222.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 22200049 - 21 = 22200047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22199999 and 22200035.

It is not an unprimeable number, because it can be changed into a prime (22200043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40689 + ... + 41230.

It is an arithmetic number, because the mean of its divisors is an integer number (5570560).

Almost surely, 222200049 is an apocalyptic number.

It is an amenable number.

22200049 is a deficient number, since it is larger than the sum of its proper divisors (82191).

22200049 is an equidigital number, since it uses as much as digits as its factorization.

22200049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82190.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 22200049 is about 4711.6927955884. The cubic root of 22200049 is about 281.0506825498.

The spelling of 22200049 in words is "twenty-two million, two hundred thousand, forty-nine".

Divisors: 1 271 81919 22200049