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2220322404 = 223185026867
BaseRepresentation
bin1000010001010111…
…0110111001100100
312201201221001202010
42010111312321210
514021400304104
61004153114220
7106010300106
oct20425667144
95651831663
102220322404
11a3a3500a3
1251b6b8970
13294cc8751
14170c4b576
15cedd3489
hex84576e64

2220322404 has 12 divisors (see below), whose sum is σ = 5180752304. Its totient is φ = 740107464.

The previous prime is 2220322369. The next prime is 2220322409. The reversal of 2220322404 is 4042230222.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2220322409) 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, 92513422 + ... + 92513445.

Almost surely, 22220322404 is an apocalyptic number.

It is an amenable number.

2220322404 is an abundant number, since it is smaller than the sum of its proper divisors (2960429900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2220322404 is a wasteful number, since it uses less digits than its factorization.

2220322404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185026874 (or 185026872 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 2220322404 is about 47120.2971552600. The cubic root of 2220322404 is about 1304.5838975204.

Adding to 2220322404 its reverse (4042230222), we get a palindrome (6262552626).

The spelling of 2220322404 in words is "two billion, two hundred twenty million, three hundred twenty-two thousand, four hundred four".

Divisors: 1 2 3 4 6 12 185026867 370053734 555080601 740107468 1110161202 2220322404