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2220222013 = 19360119141
BaseRepresentation
bin1000010001010101…
…1110011000111101
312201201201222000221
42010111132120331
514021334101023
61004151021341
7106006401322
oct20425363075
95651658027
102220222013
11a3a291729
1251b66a851
13294c91b49
14170c22b49
15cedb385d
hex8455e63d

2220222013 has 8 divisors (see below), whose sum is σ = 2235555896. Its totient is φ = 2204928000.

The previous prime is 2220221951. The next prime is 2220222023. The reversal of 2220222013 is 3102220222.

2220222013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 451010169 + 1769211844 = 21237^2 + 42062^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2220222013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220222023) 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, 106423 + ... + 125563.

It is an arithmetic number, because the mean of its divisors is an integer number (279444487).

Almost surely, 22220222013 is an apocalyptic number.

It is an amenable number.

2220222013 is a deficient number, since it is larger than the sum of its proper divisors (15333883).

2220222013 is a wasteful number, since it uses less digits than its factorization.

2220222013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19935.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2220222013 is about 47119.2318804116. The cubic root of 2220222013 is about 1304.5642351423.

Adding to 2220222013 its reverse (3102220222), we get a palindrome (5322442235).

The spelling of 2220222013 in words is "two billion, two hundred twenty million, two hundred twenty-two thousand, thirteen".

Divisors: 1 193 601 19141 115993 3694213 11503741 2220222013