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22107439 = 23479
BaseRepresentation
bin101010001010…
…1010100101111
31112121011201001
41110111110233
521124414224
62105501131
7355624114
oct124252457
945534631
1022107439
111152a712
1274a17a7
134770733
142d1690b
151e1a544
hex151552f

22107439 has 10 divisors (see below), whose sum is σ = 23404880. Its totient is φ = 20878572.

The previous prime is 22107427. The next prime is 22107443. The reversal of 22107439 is 93470122.

It is not a de Polignac number, because 22107439 - 27 = 22107311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22107419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 279802 + ... + 279880.

It is an arithmetic number, because the mean of its divisors is an integer number (2340488).

Almost surely, 222107439 is an apocalyptic number.

22107439 is a deficient number, since it is larger than the sum of its proper divisors (1297441).

22107439 is an frugal number, since it uses more digits than its factorization.

22107439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 22107439 is about 4701.8548467599. The cubic root of 22107439 is about 280.6593263433.

The spelling of 22107439 in words is "twenty-two million, one hundred seven thousand, four hundred thirty-nine".

Divisors: 1 23 79 529 1817 12167 41791 279841 961193 22107439