Search a number
-
+
2172424433260 = 225386772808419
BaseRepresentation
bin11111100111001110100…
…101100010111001101100
321200200101222211121021211
4133213032211202321230
5241043111123331020
64341555323004204
7312644463001534
oct37471645427154
97620358747254
102172424433260
11768357a59604
122b1044669664
13129b21880343
14772085064c4
153b79a5c885a
hex1f9ce962e6c

2172424433260 has 24 divisors (see below), whose sum is σ = 4562210887920. Its totient is φ = 868946996544.

The previous prime is 2172424433177. The next prime is 2172424433317. The reversal of 2172424433260 is 623344242712.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630670 + ... + 2177749.

It is an arithmetic number, because the mean of its divisors is an integer number (190092120330).

Almost surely, 22172424433260 is an apocalyptic number.

2172424433260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2172424433260 is an abundant number, since it is smaller than the sum of its proper divisors (2389786454660).

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

2172424433260 is a wasteful number, since it uses less digits than its factorization.

2172424433260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847105 (or 2847103 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 40.

Adding to 2172424433260 its reverse (623344242712), we get a palindrome (2795768675972).

The spelling of 2172424433260 in words is "two trillion, one hundred seventy-two billion, four hundred twenty-four million, four hundred thirty-three thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 38677 77354 154708 193385 386770 773540 2808419 5616838 11233676 14042095 28084190 56168380 108621221663 217242443326 434484886652 543106108315 1086212216630 2172424433260