Search a number
-
+
2195385320 = 23571773023
BaseRepresentation
bin1000001011011010…
…1110101111101000
312200000000010111102
42002312232233220
513444004312240
61001502420532
7105255316202
oct20266565750
95600003442
102195385320
11a27268537
12513291748
1328caa708b
1416b7d9772
15ccb09815
hex82daebe8

2195385320 has 32 divisors (see below), whose sum is σ = 5009195520. Its totient is φ = 865784640.

The previous prime is 2195385319. The next prime is 2195385323. The reversal of 2195385320 is 235835912.

It is not an unprimeable number, because it can be changed into a prime (2195385323) by changing a digit.

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, 383672 + ... + 389351.

It is an arithmetic number, because the mean of its divisors is an integer number (156537360).

Almost surely, 22195385320 is an apocalyptic number.

2195385320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2195385320 is an abundant number, since it is smaller than the sum of its proper divisors (2813810200).

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

2195385320 is a wasteful number, since it uses less digits than its factorization.

2195385320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773105 (or 773101 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 2195385320 is about 46854.9391206519. The cubic root of 2195385320 is about 1299.6814446292.

The spelling of 2195385320 in words is "two billion, one hundred ninety-five million, three hundred eighty-five thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 71 142 284 355 568 710 1420 2840 773023 1546046 3092092 3865115 6184184 7730230 15460460 30920920 54884633 109769266 219538532 274423165 439077064 548846330 1097692660 2195385320