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222320131 = 1189227089
BaseRepresentation
bin11010100000001…
…01011000000011
3120111100000212221
431100011120003
5423403221011
634021031511
75336455435
oct1520053003
9514300787
10222320131
11104548450
1262555597
13370a0797
1421752655
15147b7971
hexd405603

222320131 has 8 divisors (see below), whose sum is σ = 245257200. Its totient is φ = 199837440.

The previous prime is 222320029. The next prime is 222320167. The reversal of 222320131 is 131023222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222320131 - 219 = 221795843 is a prime.

It is a super-2 number, since 2×2223201312 = 98852481295714322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222320731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112566 + ... + 114523.

It is an arithmetic number, because the mean of its divisors is an integer number (30657150).

Almost surely, 2222320131 is an apocalyptic number.

222320131 is a deficient number, since it is larger than the sum of its proper divisors (22937069).

222320131 is a wasteful number, since it uses less digits than its factorization.

222320131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227189.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 222320131 is about 14910.4034485992. The cubic root of 222320131 is about 605.7958072444.

Adding to 222320131 its reverse (131023222), we get a palindrome (353343353).

The spelling of 222320131 in words is "two hundred twenty-two million, three hundred twenty thousand, one hundred thirty-one".

Divisors: 1 11 89 979 227089 2497979 20210921 222320131