Search a number
-
+
2122423205 = 5760640663
BaseRepresentation
bin111111010000001…
…1001101110100101
312110220201021021212
41332200121232211
513321320020310
6550334521205
7103411204520
oct17640315645
95426637255
102122423205
1199a063a71
124b2966205
1327a93c226
14161c45bb7
15c64e6205
hex7e819ba5

2122423205 has 8 divisors (see below), whose sum is σ = 2910751872. Its totient is φ = 1455375888.

The previous prime is 2122423169. The next prime is 2122423223. The reversal of 2122423205 is 5023242212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2122423205 - 214 = 2122406821 is a prime.

It is a super-2 number, since 2×21224232052 = 9009360522244944050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 30320297 + ... + 30320366.

It is an arithmetic number, because the mean of its divisors is an integer number (363843984).

Almost surely, 22122423205 is an apocalyptic number.

It is an amenable number.

2122423205 is a deficient number, since it is larger than the sum of its proper divisors (788328667).

2122423205 is an equidigital number, since it uses as much as digits as its factorization.

2122423205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60640675.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 2122423205 is about 46069.7645424849. The cubic root of 2122423205 is about 1285.1209250964.

Adding to 2122423205 its reverse (5023242212), we get a palindrome (7145665417).

The spelling of 2122423205 in words is "two billion, one hundred twenty-two million, four hundred twenty-three thousand, two hundred five".

Divisors: 1 5 7 35 60640663 303203315 424484641 2122423205