[go: up one dir, main page]

Search a number
-
+
2220430442 = 223538310973
BaseRepresentation
bin1000010001011001…
…0001010001101010
312201202010112221112
42010112101101222
514021412233232
61004155310322
7106011230066
oct20426212152
95652115845
102220430442
11a3a41428a
1251b74b3a2
13295035989
14170c78aa6
15cee054b2
hex8459146a

2220430442 has 32 divisors (see below), whose sum is σ = 3584020608. Its totient is φ = 1029261376.

The previous prime is 2220430427. The next prime is 2220430483. The reversal of 2220430442 is 2440340222.

It is a super-2 number, since 2×22204304422 = 9860622695520630728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196868 + ... + 207840.

It is an arithmetic number, because the mean of its divisors is an integer number (112000644).

Almost surely, 22220430442 is an apocalyptic number.

2220430442 is a deficient number, since it is larger than the sum of its proper divisors (1363590166).

2220430442 is a wasteful number, since it uses less digits than its factorization.

2220430442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11134.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 2220430442 is about 47121.4435474976. The cubic root of 2220430442 is about 1304.6050569623.

Adding to 2220430442 its reverse (2440340222), we get a palindrome (4660770664).

The spelling of 2220430442 in words is "two billion, two hundred twenty million, four hundred thirty thousand, four hundred forty-two".

Divisors: 1 2 23 46 53 83 106 166 1219 1909 2438 3818 4399 8798 10973 21946 101177 202354 252379 504758 581569 910759 1163138 1821518 13376087 20947457 26752174 41894914 48270227 96540454 1110215221 2220430442