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2220306001 = 10103219767
BaseRepresentation
bin1000010001010111…
…0010111001010001
312201201220020020121
42010111302321101
514021344243001
61004152510241
7106010201224
oct20425627121
95651806217
102220306001
11a3a339841
1251b6ab381
13294cc1144
14170c455bb
15cedcd6a1
hex84572e51

2220306001 has 4 divisors (see below), whose sum is σ = 2220535872. Its totient is φ = 2220076132.

The previous prime is 2220305993. The next prime is 2220306017. The reversal of 2220306001 is 1006030222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2220306001 - 23 = 2220305993 is a prime.

It is a super-2 number, since 2×22203060012 = 9859517476153224002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2220306401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99781 + ... + 119986.

It is an arithmetic number, because the mean of its divisors is an integer number (555133968).

Almost surely, 22220306001 is an apocalyptic number.

It is an amenable number.

2220306001 is a deficient number, since it is larger than the sum of its proper divisors (229871).

2220306001 is a wasteful number, since it uses less digits than its factorization.

2220306001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229870.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2220306001 is about 47120.1231004334. The cubic root of 2220306001 is about 1304.5806849025.

Adding to 2220306001 its reverse (1006030222), we get a palindrome (3226336223).

The spelling of 2220306001 in words is "two billion, two hundred twenty million, three hundred six thousand, one".

Divisors: 1 10103 219767 2220306001