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22039039 = 117128219
BaseRepresentation
bin101010000010…
…0100111111111
31112110200212201
41110010213333
521120222124
62104212331
7355220521
oct124044777
945420781
1022039039
1111493290
12746a0a7
134748569
142cd9a11
151e05144
hex15049ff

22039039 has 8 divisors (see below), whose sum is σ = 24382080. Its totient is φ = 19752600.

The previous prime is 22039019. The next prime is 22039049. The reversal of 22039039 is 93093022.

It is a happy number.

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 22039039 - 213 = 22030847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22038998 and 22039016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22039019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13329 + ... + 14890.

It is an arithmetic number, because the mean of its divisors is an integer number (3047760).

Almost surely, 222039039 is an apocalyptic number.

22039039 is a deficient number, since it is larger than the sum of its proper divisors (2343041).

22039039 is a wasteful number, since it uses less digits than its factorization.

22039039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28301.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 22039039 is about 4694.5754866654. The cubic root of 22039039 is about 280.3695757529.

The spelling of 22039039 in words is "twenty-two million, thirty-nine thousand, thirty-nine".

Divisors: 1 11 71 781 28219 310409 2003549 22039039