Search a number
-
+
2712222220 = 225382135491
BaseRepresentation
bin1010000110101001…
…0011101000001100
321000000112011102211
42201222103220030
521023312102340
61125044200204
7124132336261
oct24152235014
97000464384
102712222220
111171a84774
12638399064
13342ba5926
141ba2d5268
1510d19b5ea
hexa1a93a0c

2712222220 has 24 divisors (see below), whose sum is σ = 5697317808. Its totient is φ = 1084574400.

The previous prime is 2712222173. The next prime is 2712222239. The reversal of 2712222220 is 222222172.

It is a super-2 number, since 2×27122222202 = 14712298741323456800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2712222191 and 2712222200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58675 + ... + 94165.

It is an arithmetic number, because the mean of its divisors is an integer number (237388242).

Almost surely, 22712222220 is an apocalyptic number.

2712222220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2712222220 is an abundant number, since it is smaller than the sum of its proper divisors (2985095588).

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

2712222220 is a wasteful number, since it uses less digits than its factorization.

2712222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39321 (or 39319 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 2712222220 is about 52078.9997983832. Note that the first 3 decimals coincide. The cubic root of 2712222220 is about 1394.5746179694.

Adding to 2712222220 its reverse (222222172), we get a palindrome (2934444392).

The spelling of 2712222220 in words is "two billion, seven hundred twelve million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 3821 7642 15284 19105 35491 38210 70982 76420 141964 177455 354910 709820 135611111 271222222 542444444 678055555 1356111110 2712222220