Search a number
-
+
223832981 = 4113194139
BaseRepresentation
bin11010101011101…
…10101110010101
3120121011220010102
431111312232111
5424300123411
634113303445
75355356201
oct1525665625
9517156112
10223832981
11105391039
1262b64b85
13374b0268
1421a27b01
15149b5d3b
hexd576b95

223832981 has 8 divisors (see below), whose sum is σ = 229521600. Its totient is φ = 218155360.

The previous prime is 223832971. The next prime is 223832993. The reversal of 223832981 is 189238322.

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

It is a cyclic number.

It is not a de Polignac number, because 223832981 - 210 = 223831957 is a prime.

It is a super-2 number, since 2×2238329812 = 100202406766692722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223832911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52010 + ... + 56148.

It is an arithmetic number, because the mean of its divisors is an integer number (28690200).

Almost surely, 2223832981 is an apocalyptic number.

It is an amenable number.

223832981 is a deficient number, since it is larger than the sum of its proper divisors (5688619).

223832981 is a wasteful number, since it uses less digits than its factorization.

223832981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5499.

The product of its digits is 41472, while the sum is 38.

The square root of 223832981 is about 14961.0487934503. The cubic root of 223832981 is about 607.1668139712.

The spelling of 223832981 in words is "two hundred twenty-three million, eight hundred thirty-two thousand, nine hundred eighty-one".

Divisors: 1 41 1319 4139 54079 169699 5459341 223832981