Search a number
-
+
2220220424 = 23793513007
BaseRepresentation
bin1000010001010101…
…1110000000001000
312201201201212212002
42010111132000020
514021334023144
61004151010132
7106006363562
oct20425360010
95651655762
102220220424
11a3a290514
1251b669948
13294c911c6
14170c22332
15cedb314e
hex8455e008

2220220424 has 16 divisors (see below), whose sum is σ = 4215609600. Its totient is φ = 1096057872.

The previous prime is 2220220423. The next prime is 2220220427. The reversal of 2220220424 is 4240220222.

It is a super-2 number, since 2×22202204242 = 9858757462293479552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2220220396 and 2220220405.

It is not an unprimeable number, because it can be changed into a prime (2220220423) 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, 1755872 + ... + 1757135.

It is an arithmetic number, because the mean of its divisors is an integer number (263475600).

Almost surely, 22220220424 is an apocalyptic number.

It is an amenable number.

2220220424 is a deficient number, since it is larger than the sum of its proper divisors (1995389176).

2220220424 is a wasteful number, since it uses less digits than its factorization.

2220220424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3513092 (or 3513088 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 2220220424 is about 47119.2150189283. The cubic root of 2220220424 is about 1304.5639239192.

Adding to 2220220424 its reverse (4240220222), we get a palindrome (6460440646).

The spelling of 2220220424 in words is "two billion, two hundred twenty million, two hundred twenty thousand, four hundred twenty-four".

Divisors: 1 2 4 8 79 158 316 632 3513007 7026014 14052028 28104056 277527553 555055106 1110110212 2220220424