Search a number
-
+
2212002220 = 225173639307
BaseRepresentation
bin1000001111011000…
…0111100110101100
312201011021100121011
42003312013212230
514012233032340
61003254515004
7105546465031
oct20366074654
95634240534
102212002220
11a3568800a
12518965a64
1329337466c
1416dac3388
15ce2dd0ea
hex83d879ac

2212002220 has 24 divisors (see below), whose sum is σ = 4672062864. Its totient is φ = 879685056.

The previous prime is 2212002151. The next prime is 2212002239. The reversal of 2212002220 is 222002122.

2212002220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2212002220.

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, 316194 + ... + 323113.

It is an arithmetic number, because the mean of its divisors is an integer number (194669286).

Almost surely, 22212002220 is an apocalyptic number.

2212002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212002220 is an abundant number, since it is smaller than the sum of its proper divisors (2460060644).

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

2212002220 is a wasteful number, since it uses less digits than its factorization.

2212002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639489 (or 639487 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2212002220 is about 47031.9276662142. The cubic root of 2212002220 is about 1302.9523079665.

Adding to 2212002220 its reverse (222002122), we get a palindrome (2434004342).

The spelling of 2212002220 in words is "two billion, two hundred twelve million, two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 173 346 692 865 1730 3460 639307 1278614 2557228 3196535 6393070 12786140 110600111 221200222 442400444 553000555 1106001110 2212002220