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2868222631 = 6742809293
BaseRepresentation
bin1010101011110101…
…1001101010100111
321101220001210202211
42222331121222213
521333231111011
61152335544251
7131035330051
oct25275315247
97356053684
102868222631
11124204512a
1268068b087
133692c5a71
141d2d028d1
1511bc13b21
hexaaf59aa7

2868222631 has 4 divisors (see below), whose sum is σ = 2911031992. Its totient is φ = 2825413272.

The previous prime is 2868222619. The next prime is 2868222661. The reversal of 2868222631 is 1362228682.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2868222631 - 213 = 2868214439 is a prime.

It is a super-2 number, since 2×28682226312 = 16453402121961124322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2868222661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21404580 + ... + 21404713.

It is an arithmetic number, because the mean of its divisors is an integer number (727757998).

Almost surely, 22868222631 is an apocalyptic number.

2868222631 is a deficient number, since it is larger than the sum of its proper divisors (42809361).

2868222631 is an equidigital number, since it uses as much as digits as its factorization.

2868222631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42809360.

The product of its digits is 110592, while the sum is 40.

The square root of 2868222631 is about 53555.7898924103. The cubic root of 2868222631 is about 1420.8152811788.

The spelling of 2868222631 in words is "two billion, eight hundred sixty-eight million, two hundred twenty-two thousand, six hundred thirty-one".

Divisors: 1 67 42809293 2868222631