Search a number
-
+
223399 = 1123883
BaseRepresentation
bin110110100010100111
3102100110001
4312202213
524122044
64442131
71620211
oct664247
9370401
10223399
11142930
12a9347
137a8b7
145b5b1
15462d4
hex368a7

223399 has 8 divisors (see below), whose sum is σ = 254592. Its totient is φ = 194040.

The previous prime is 223381. The next prime is 223403. The reversal of 223399 is 993322.

It can be divided in two parts, 2233 and 99, that added together give a palindrome (2332).

It is a happy number.

223399 is nontrivially palindromic in base 4.

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

It is not a de Polignac number, because 223399 - 25 = 223367 is a prime.

It is a super-2 number, since 2×2233992 = 99814226402, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223319) 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, 189 + ... + 694.

It is an arithmetic number, because the mean of its divisors is an integer number (31824).

2223399 is an apocalyptic number.

223399 is the 253-rd nonagonal number.

223399 is a deficient number, since it is larger than the sum of its proper divisors (31193).

223399 is a wasteful number, since it uses less digits than its factorization.

223399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917.

The product of its digits is 2916, while the sum is 28.

The square root of 223399 is about 472.6510340621. The cubic root of 223399 is about 60.6774156107.

The spelling of 223399 in words is "two hundred twenty-three thousand, three hundred ninety-nine".

Divisors: 1 11 23 253 883 9713 20309 223399