Search a number
-
+
22224160 = 255719843
BaseRepresentation
bin101010011000…
…1110100100000
31112211002211001
41110301310200
521142133120
62112201344
7356621320
oct124616440
945732731
1022224160
11115aa382
127539254
1347b18ba
142d47280
151e3ee0a
hex1531d20

22224160 has 48 divisors (see below), whose sum is σ = 60008256. Its totient is φ = 7619328.

The previous prime is 22224149. The next prime is 22224203. The reversal of 22224160 is 6142222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8802 + ... + 11041.

It is an arithmetic number, because the mean of its divisors is an integer number (1250172).

Almost surely, 222224160 is an apocalyptic number.

22224160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22224160 is an abundant number, since it is smaller than the sum of its proper divisors (37784096).

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

22224160 is a wasteful number, since it uses less digits than its factorization.

22224160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19865 (or 19857 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 22224160 is about 4714.2507358010. The cubic root of 22224160 is about 281.1523934551.

Adding to 22224160 its reverse (6142222), we get a palindrome (28366382).

The spelling of 22224160 in words is "twenty-two million, two hundred twenty-four thousand, one hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 112 140 160 224 280 560 1120 19843 39686 79372 99215 138901 158744 198430 277802 317488 396860 555604 634976 694505 793720 1111208 1389010 1587440 2222416 2778020 3174880 4444832 5556040 11112080 22224160