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2220210131 = 17389127679
BaseRepresentation
bin1000010001010101…
…1011011111010011
312201201201100201212
42010111123133103
514021333211011
61004150450335
7106006321556
oct20425333723
95651640655
102220210131
11a3a283807
1251b6639ab
13294c89609
14170c1c69d
15cedb008b
hex8455b7d3

2220210131 has 4 divisors (see below), whose sum is σ = 2220355200. Its totient is φ = 2220065064.

The previous prime is 2220210071. The next prime is 2220210163. The reversal of 2220210131 is 1310120222.

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 2220210131 - 26 = 2220210067 is a prime.

It is a super-2 number, since 2×22202101312 = 9858666051590074322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220210191) 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 3 ways as a sum of consecutive naturals, for example, 46451 + ... + 81228.

It is an arithmetic number, because the mean of its divisors is an integer number (555088800).

Almost surely, 22220210131 is an apocalyptic number.

2220210131 is a deficient number, since it is larger than the sum of its proper divisors (145069).

2220210131 is a wasteful number, since it uses less digits than its factorization.

2220210131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145068.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2220210131 is about 47119.1057958446. The cubic root of 2220210131 is about 1304.5619079186.

Adding to 2220210131 its reverse (1310120222), we get a palindrome (3530330353).

The spelling of 2220210131 in words is "two billion, two hundred twenty million, two hundred ten thousand, one hundred thirty-one".

Divisors: 1 17389 127679 2220210131