[go: up one dir, main page]

Search a number
-
+
2223224440 = 23559992789
BaseRepresentation
bin1000010010000011…
…1011011001111000
312201221101111120221
42010200323121320
514023121140230
61004335225424
7106044044623
oct20440733170
95657344527
102223224440
11a40a52478
12520678274
132957a3628
141713a4dba
15d02a827a
hex8483b678

2223224440 has 32 divisors (see below), whose sum is σ = 5010660000. Its totient is φ = 887795584.

The previous prime is 2223224387. The next prime is 2223224441. The reversal of 2223224440 is 444223222.

It is a super-2 number, since 2×22232244402 = 9885453821226627200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223224441) 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, 22435 + ... + 70354.

It is an arithmetic number, because the mean of its divisors is an integer number (156583125).

Almost surely, 22223224440 is an apocalyptic number.

2223224440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2223224440 is an abundant number, since it is smaller than the sum of its proper divisors (2787435560).

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

2223224440 is a wasteful number, since it uses less digits than its factorization.

2223224440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93399 (or 93395 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 25.

The square root of 2223224440 is about 47151.0810056355. The cubic root of 2223224440 is about 1305.1520284025.

Adding to 2223224440 its reverse (444223222), we get a palindrome (2667447662).

The spelling of 2223224440 in words is "two billion, two hundred twenty-three million, two hundred twenty-four thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 599 1198 2396 2995 4792 5990 11980 23960 92789 185578 371156 463945 742312 927890 1855780 3711560 55580611 111161222 222322444 277903055 444644888 555806110 1111612220 2223224440