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22210131 = 322333199
BaseRepresentation
bin101010010111…
…0011001010011
31112210101120110
41110232121103
521141211011
62112012403
7356532366
oct124563123
945711513
1022210131
111159a889
127531103
1347a83b8
142d420dd
151e3aba6
hex152e653

22210131 has 8 divisors (see below), whose sum is σ = 29747200. Its totient is φ = 14739912.

The previous prime is 22210129. The next prime is 22210147. The reversal of 22210131 is 13101222.

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

It is not a de Polignac number, because 22210131 - 21 = 22210129 is a prime.

It is a super-2 number, since 2×222101312 = 986579838074322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22210121) by changing a digit.

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, 15931 + ... + 17268.

It is an arithmetic number, because the mean of its divisors is an integer number (3718400).

Almost surely, 222210131 is an apocalyptic number.

22210131 is a deficient number, since it is larger than the sum of its proper divisors (7537069).

22210131 is a wasteful number, since it uses less digits than its factorization.

22210131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33425.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 22210131 is about 4712.7625656296. The cubic root of 22210131 is about 281.0932218574.

Adding to 22210131 its reverse (13101222), we get a palindrome (35311353).

The spelling of 22210131 in words is "twenty-two million, two hundred ten thousand, one hundred thirty-one".

Divisors: 1 3 223 669 33199 99597 7403377 22210131