Search a number
-
+
23042049 = 319140213
BaseRepresentation
bin101011111100…
…1100000000001
31121100122202020
41113321200001
521344321144
62141512053
7366565662
oct127714001
947318666
1023042049
1112008918
127872629
134a09c64
1430bb369
152052419
hex15f9801

23042049 has 8 divisors (see below), whose sum is σ = 30884352. Its totient is φ = 15280560.

The previous prime is 23042029. The next prime is 23042053. The reversal of 23042049 is 94024032.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23042049 - 25 = 23042017 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23042029) 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 7 ways as a sum of consecutive naturals, for example, 19534 + ... + 20679.

It is an arithmetic number, because the mean of its divisors is an integer number (3860544).

Almost surely, 223042049 is an apocalyptic number.

It is an amenable number.

23042049 is a deficient number, since it is larger than the sum of its proper divisors (7842303).

23042049 is a wasteful number, since it uses less digits than its factorization.

23042049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40407.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 23042049 is about 4800.2134327548. The cubic root of 23042049 is about 284.5598993804.

The spelling of 23042049 in words is "twenty-three million, forty-two thousand, forty-nine".

Divisors: 1 3 191 573 40213 120639 7680683 23042049