Base | Representation |
---|---|
bin | 11010101010101… |
… | …00101001000100 |
3 | 120120220210122000 |
4 | 31111110221010 |
5 | 424231142010 |
6 | 34110305300 |
7 | 5354235201 |
oct | 1525245104 |
9 | 516823560 |
10 | 223693380 |
11 | 1052a6169 |
12 | 62ab8230 |
13 | 37461861 |
14 | 219ccca8 |
15 | 149897c0 |
hex | d554a44 |
223693380 has 96 divisors (see below), whose sum is σ = 698409600. Its totient is φ = 59439744.
The previous prime is 223693333. The next prime is 223693391. The reversal of 223693380 is 83396322.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204114 + ... + 205206.
It is an arithmetic number, because the mean of its divisors is an integer number (7275100).
Almost surely, 2223693380 is an apocalyptic number.
223693380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 223693380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349204800).
223693380 is an abundant number, since it is smaller than the sum of its proper divisors (474716220).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
223693380 is a wasteful number, since it uses less digits than its factorization.
223693380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1490 (or 1482 counting only the distinct ones).
The product of its (nonzero) digits is 46656, while the sum is 36.
The square root of 223693380 is about 14956.3825840341. The cubic root of 223693380 is about 607.0405610220.
The spelling of 223693380 in words is "two hundred twenty-three million, six hundred ninety-three thousand, three hundred eighty".
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