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22023005 = 57360337
BaseRepresentation
bin101010000000…
…0101101011101
31112102212212212
41110000231131
521114214010
62104010205
7355123004
oct124005535
945385785
1022023005
1111482234
127460965
134741184
142cd3c3b
151e00505
hex1500b5d

22023005 has 8 divisors (see below), whose sum is σ = 26790072. Its totient is φ = 17376768.

The previous prime is 22022999. The next prime is 22023019. The reversal of 22023005 is 50032022.

It can be written as a sum of positive squares in 4 ways, for example, as 326041 + 21696964 = 571^2 + 4658^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 22023005 - 210 = 22021981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 29804 + ... + 30533.

It is an arithmetic number, because the mean of its divisors is an integer number (3348759).

Almost surely, 222023005 is an apocalyptic number.

It is an amenable number.

22023005 is a deficient number, since it is larger than the sum of its proper divisors (4767067).

22023005 is an equidigital number, since it uses as much as digits as its factorization.

22023005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60415.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 22023005 is about 4692.8674603061. The cubic root of 22023005 is about 280.3015670948.

Adding to 22023005 its reverse (50032022), we get a palindrome (72055027).

The spelling of 22023005 in words is "twenty-two million, twenty-three thousand, five".

Divisors: 1 5 73 365 60337 301685 4404601 22023005