Search a number
-
+
23054513 = 181127373
BaseRepresentation
bin101011111110…
…0100010110001
31121101021211212
41113330202301
521400221023
62142045505
7366650216
oct127744261
947337755
1023054513
1112017219
127879895
134a12831
1430c1b0d
152055e78
hex15fc8b1

23054513 has 4 divisors (see below), whose sum is σ = 23182068. Its totient is φ = 22926960.

The previous prime is 23054509. The next prime is 23054519. The reversal of 23054513 is 31545032.

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 2050624 + 21003889 = 1432^2 + 4583^2 .

It is a cyclic number.

It is not a de Polignac number, because 23054513 - 22 = 23054509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23054519) 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, 63506 + ... + 63867.

It is an arithmetic number, because the mean of its divisors is an integer number (5795517).

Almost surely, 223054513 is an apocalyptic number.

It is an amenable number.

23054513 is a deficient number, since it is larger than the sum of its proper divisors (127555).

23054513 is a wasteful number, since it uses less digits than its factorization.

23054513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127554.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 23054513 is about 4801.5115328405. The cubic root of 23054513 is about 284.6111985693.

Adding to 23054513 its reverse (31545032), we get a palindrome (54599545).

The spelling of 23054513 in words is "twenty-three million, fifty-four thousand, five hundred thirteen".

Divisors: 1 181 127373 23054513