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223233481 = 6722232
BaseRepresentation
bin11010100111001…
…00010111001001
3120120001102202201
431103210113021
5424121432411
634052400201
75350311322
oct1523442711
9516042681
10223233481
11105011689
1262916061
1337330423
142190d449
15148e83c1
hexd4e45c9

223233481 has 9 divisors (see below), whose sum is σ = 227635821. Its totient is φ = 218915532.

The previous prime is 223233467. The next prime is 223233529. The reversal of 223233481 is 184332322.

The square root of 223233481 is 14941.

It is a perfect power (a square), and thus also a powerful number.

223233481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-223233481 is a prime.

It is a super-3 number, since 3×2232334813 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223233401) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1000936 + ... + 1001158.

It is an arithmetic number, because the mean of its divisors is an integer number (25292869).

Almost surely, 2223233481 is an apocalyptic number.

223233481 is the 14941-st square number.

223233481 is the 7471-st centered octagonal number.

It is an amenable number.

223233481 is a deficient number, since it is larger than the sum of its proper divisors (4402340).

223233481 is an frugal number, since it uses more digits than its factorization.

223233481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 290 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The cubic root of 223233481 is about 606.6242636641.

The spelling of 223233481 in words is "two hundred twenty-three million, two hundred thirty-three thousand, four hundred eighty-one".

Divisors: 1 67 223 4489 14941 49729 1001047 3331843 223233481