Base | Representation |
---|---|
bin | 11010101000001… |
… | …11110101011100 |
3 | 120120022211002011 |
4 | 31110013311130 |
5 | 424141110110 |
6 | 34055441004 |
7 | 5351455042 |
oct | 1524076534 |
9 | 516284064 |
10 | 223378780 |
11 | 105100869 |
12 | 62986164 |
13 | 373815c1 |
14 | 2194a392 |
15 | 1492648a |
hex | d507d5c |
223378780 has 48 divisors (see below), whose sum is σ = 485968896. Its totient is φ = 86192960.
The previous prime is 223378769. The next prime is 223378781. The reversal of 223378780 is 87873322.
223378780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (223378781) 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, 65067 + ... + 68413.
It is an arithmetic number, because the mean of its divisors is an integer number (10124352).
Almost surely, 2223378780 is an apocalyptic number.
223378780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
223378780 is an abundant number, since it is smaller than the sum of its proper divisors (262590116).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
223378780 is a wasteful number, since it uses less digits than its factorization.
223378780 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3474 (or 3472 counting only the distinct ones).
The product of its (nonzero) digits is 112896, while the sum is 40.
The square root of 223378780 is about 14945.8616345797. The cubic root of 223378780 is about 606.7558490368.
The spelling of 223378780 in words is "two hundred twenty-three million, three hundred seventy-eight thousand, seven hundred eighty".
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