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222238137 = 31147143287
BaseRepresentation
bin11010011111100…
…01010110111001
3120111011212102010
431033301112321
5423343110022
634015200133
75335664412
oct1517612671
9514155363
10222238137
111044a1890
1262516049
1337072374
1421730809
151479d50c
hexd3f15b9

222238137 has 16 divisors (see below), whose sum is σ = 330135552. Its totient is φ = 131823120.

The previous prime is 222238111. The next prime is 222238141. The reversal of 222238137 is 731832222.

It is a de Polignac number, because none of the positive numbers 2k-222238137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222238337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70093 + ... + 73194.

It is an arithmetic number, because the mean of its divisors is an integer number (20633472).

Almost surely, 2222238137 is an apocalyptic number.

It is an amenable number.

222238137 is a deficient number, since it is larger than the sum of its proper divisors (107897415).

222238137 is a wasteful number, since it uses less digits than its factorization.

222238137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143348.

The product of its digits is 8064, while the sum is 30.

The square root of 222238137 is about 14907.6536383161. The cubic root of 222238137 is about 605.7213234674.

The spelling of 222238137 in words is "two hundred twenty-two million, two hundred thirty-eight thousand, one hundred thirty-seven".

Divisors: 1 3 11 33 47 141 517 1551 143287 429861 1576157 4728471 6734489 20203467 74079379 222238137