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223230012 = 223191496571
BaseRepresentation
bin11010100111000…
…11100000111100
3120120001021000020
431103203200330
5424121330022
634052332140
75350265235
oct1523434074
9516037006
10223230012
1110500a015
1262914050
133732b985
142190c08c
15148e735c
hexd4e383c

223230012 has 48 divisors (see below), whose sum is σ = 552048000. Its totient is φ = 70009920.

The previous prime is 223230001. The next prime is 223230013. The reversal of 223230012 is 210032322.

223230012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2232300123 (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223229973 and 223230000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223230013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30687 + ... + 37257.

It is an arithmetic number, because the mean of its divisors is an integer number (11501000).

Almost surely, 2223230012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223230012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276024000).

223230012 is an abundant number, since it is smaller than the sum of its proper divisors (328817988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223230012 is a wasteful number, since it uses less digits than its factorization.

223230012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6746 (or 6744 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 223230012 is about 14940.8839095952. The cubic root of 223230012 is about 606.6211213778.

Adding to 223230012 its reverse (210032322), we get a palindrome (433262334).

The spelling of 223230012 in words is "two hundred twenty-three million, two hundred thirty thousand, twelve".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 149 228 298 447 596 894 1788 2831 5662 6571 8493 11324 13142 16986 19713 26284 33972 39426 78852 124849 249698 374547 499396 749094 979079 1498188 1958158 2937237 3916316 5874474 11748948 18602501 37205002 55807503 74410004 111615006 223230012