Search a number
-
+
223223555 = 5385311587
BaseRepresentation
bin11010100111000…
…01111100000011
3120120000221011002
431103201330003
5424121123210
634052242215
75350240352
oct1523417403
9516027132
10223223555
11105005185
126291036b
1337328a59
1421909999
15148e54a5
hexd4e1f03

223223555 has 8 divisors (see below), whose sum is σ = 267960912. Its totient is φ = 178517088.

The previous prime is 223223551. The next prime is 223223563. The reversal of 223223555 is 555322322.

It is a happy number.

223223555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 223223555 - 22 = 223223551 is a prime.

It is a super-3 number, since 3×2232235553 (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223223551) 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, 13472 + ... + 25058.

It is an arithmetic number, because the mean of its divisors is an integer number (33495114).

Almost surely, 2223223555 is an apocalyptic number.

223223555 is a deficient number, since it is larger than the sum of its proper divisors (44737357).

223223555 is a wasteful number, since it uses less digits than its factorization.

223223555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15445.

The product of its digits is 18000, while the sum is 29.

The square root of 223223555 is about 14940.6678230928. The cubic root of 223223555 is about 606.6152724177.

Adding to 223223555 its reverse (555322322), we get a palindrome (778545877).

The spelling of 223223555 in words is "two hundred twenty-three million, two hundred twenty-three thousand, five hundred fifty-five".

Divisors: 1 5 3853 11587 19265 57935 44644711 223223555