Search a number
-
+
22839973 = 131756921
BaseRepresentation
bin101011100100…
…0001010100101
31120222101112221
41113020022211
521321334343
62133312341
7365064562
oct127101245
946871487
1022839973
1111990012
1277956b1
134968ca0
143067869
1520125ed
hex15c82a5

22839973 has 4 divisors (see below), whose sum is σ = 24596908. Its totient is φ = 21083040.

The previous prime is 22839967. The next prime is 22839991. The reversal of 22839973 is 37993822.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15233409 + 7606564 = 3903^2 + 2758^2 .

It is a cyclic number.

It is not a de Polignac number, because 22839973 - 29 = 22839461 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 (22839913) 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, 878448 + ... + 878473.

It is an arithmetic number, because the mean of its divisors is an integer number (6149227).

Almost surely, 222839973 is an apocalyptic number.

It is an amenable number.

22839973 is a deficient number, since it is larger than the sum of its proper divisors (1756935).

22839973 is a wasteful number, since it uses less digits than its factorization.

22839973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1756934.

The product of its digits is 163296, while the sum is 43.

The square root of 22839973 is about 4779.1184333515. The cubic root of 22839973 is about 283.7256036779.

The spelling of 22839973 in words is "twenty-two million, eight hundred thirty-nine thousand, nine hundred seventy-three".

Divisors: 1 13 1756921 22839973