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2242220331 = 31373787573
BaseRepresentation
bin1000010110100101…
…1001000100101011
312210021010121001110
42011221121010223
514043002022311
61010254321403
7106364362341
oct20551310453
95707117043
102242220331
11a5074735a
12526ab9263
132996c49c0
14173b0b991
15d1cab8a6
hex85a5912b

2242220331 has 16 divisors (see below), whose sum is σ = 3263706656. Its totient is φ = 1360924416.

The previous prime is 2242220327. The next prime is 2242220333. The reversal of 2242220331 is 1330222422.

It is not a de Polignac number, because 2242220331 - 22 = 2242220327 is a prime.

It is a super-2 number, since 2×22422203312 = 10055104025499499122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2242220298 and 2242220307.

It is not an unprimeable number, because it can be changed into a prime (2242220333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 390940 + ... + 396633.

It is an arithmetic number, because the mean of its divisors is an integer number (203981666).

Almost surely, 22242220331 is an apocalyptic number.

2242220331 is a deficient number, since it is larger than the sum of its proper divisors (1021486325).

2242220331 is a wasteful number, since it uses less digits than its factorization.

2242220331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787662.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2242220331 is about 47352.0889824303. The cubic root of 2242220331 is about 1308.8586938112.

Adding to 2242220331 its reverse (1330222422), we get a palindrome (3572442753).

The spelling of 2242220331 in words is "two billion, two hundred forty-two million, two hundred twenty thousand, three hundred thirty-one".

Divisors: 1 3 13 39 73 219 949 2847 787573 2362719 10238449 30715347 57492829 172478487 747406777 2242220331