Search a number
-
+
223023131 = 4731714969
BaseRepresentation
bin11010100101100…
…01000000011011
3120112122202012222
431102301000123
5424043220011
634044054255
75345444132
oct1522610033
9515582188
10223023131
11104988641
126283438b
1337288766
1421896919
15148a5ddb
hexd4b101b

223023131 has 8 divisors (see below), whose sum is σ = 228502080. Its totient is φ = 217574848.

The previous prime is 223023113. The next prime is 223023133. The reversal of 223023131 is 131320322.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-223023131 is a prime.

It is a super-2 number, since 2×2230231312 = 99478633922086322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223023133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7415 + ... + 22383.

It is an arithmetic number, because the mean of its divisors is an integer number (28562760).

Almost surely, 2223023131 is an apocalyptic number.

223023131 is a deficient number, since it is larger than the sum of its proper divisors (5478949).

223023131 is a wasteful number, since it uses less digits than its factorization.

223023131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15333.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 223023131 is about 14933.9589861497. The cubic root of 223023131 is about 606.4336657395.

Adding to 223023131 its reverse (131320322), we get a palindrome (354343453).

The spelling of 223023131 in words is "two hundred twenty-three million, twenty-three thousand, one hundred thirty-one".

Divisors: 1 47 317 14899 14969 703543 4745173 223023131