Search a number
-
+
2220200031 = 375910716747
BaseRepresentation
bin1000010001010101…
…1001000001011111
312201201200211212210
42010111121001133
514021332400111
61004150331503
7106006250250
oct20425310137
95651624783
102220200031
11a3a277165
1251b659b93
13294c84b3a
14170c18b27
15cedac0a6
hex8455905f

2220200031 has 32 divisors (see below), whose sum is σ = 3472865280. Its totient is φ = 1235452896.

The previous prime is 2220200029. The next prime is 2220200057. The reversal of 2220200031 is 1300020222.

It is not a de Polignac number, because 2220200031 - 21 = 2220200029 is a prime.

It is a super-2 number, since 2×22202000312 = 9858576355304801922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220200231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124200 + ... + 140946.

It is an arithmetic number, because the mean of its divisors is an integer number (108527040).

Almost surely, 22220200031 is an apocalyptic number.

2220200031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2220200031 is a deficient number, since it is larger than the sum of its proper divisors (1252665249).

2220200031 is a wasteful number, since it uses less digits than its factorization.

2220200031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16923.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2220200031 is about 47118.9986205140. The cubic root of 2220200031 is about 1304.5599297131.

Adding to 2220200031 its reverse (1300020222), we get a palindrome (3520220253).

The spelling of 2220200031 in words is "two billion, two hundred twenty million, two hundred thousand, thirty-one".

Divisors: 1 3 7 21 59 107 177 321 413 749 1239 2247 6313 16747 18939 44191 50241 117229 132573 351687 988073 1791929 2964219 5375787 6916511 12543503 20749533 37630509 105723811 317171433 740066677 2220200031