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23094989 = 139166151
BaseRepresentation
bin101100000011…
…0011011001101
31121110100100222
41120012123031
521403014424
62143001125
7400206221
oct130063315
947410328
1023094989
1112044675
1278991a5
134a28098
1430d2781
152062e5e
hex16066cd

23094989 has 4 divisors (see below), whose sum is σ = 23261280. Its totient is φ = 22928700.

The previous prime is 23094983. The next prime is 23095063. The reversal of 23094989 is 98949032.

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 23094989 - 28 = 23094733 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23094983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82937 + ... + 83214.

It is an arithmetic number, because the mean of its divisors is an integer number (5815320).

Almost surely, 223094989 is an apocalyptic number.

It is an amenable number.

23094989 is a deficient number, since it is larger than the sum of its proper divisors (166291).

23094989 is a wasteful number, since it uses less digits than its factorization.

23094989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166290.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 23094989 is about 4805.7246071742. The cubic root of 23094989 is about 284.7776618229. Note that the first 3 decimals are identical.

The spelling of 23094989 in words is "twenty-three million, ninety-four thousand, nine hundred eighty-nine".

Divisors: 1 139 166151 23094989