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22031033 = 23957871
BaseRepresentation
bin101010000001…
…0101010111001
31112110021220012
41110002222321
521114443113
62104111305
7355155263
oct124025271
945407805
1022031033
1111488272
127465535
134744a1b
142cd6b33
151e02aa8
hex1502ab9

22031033 has 4 divisors (see below), whose sum is σ = 22988928. Its totient is φ = 21073140.

The previous prime is 22031027. The next prime is 22031057. The reversal of 22031033 is 33013022.

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 22031033 - 24 = 22031017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22030999 and 22031017.

It is not an unprimeable number, because it can be changed into a prime (22031003) 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, 478913 + ... + 478958.

It is an arithmetic number, because the mean of its divisors is an integer number (5747232).

Almost surely, 222031033 is an apocalyptic number.

22031033 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22031033 is a deficient number, since it is larger than the sum of its proper divisors (957895).

22031033 is an equidigital number, since it uses as much as digits as its factorization.

22031033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957894.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 22031033 is about 4693.7227229567. The cubic root of 22031033 is about 280.3356222053.

Adding to 22031033 its reverse (33013022), we get a palindrome (55044055).

The spelling of 22031033 in words is "twenty-two million, thirty-one thousand, thirty-three".

Divisors: 1 23 957871 22031033