Search a number
-
+
192002019281 is a prime number
BaseRepresentation
bin1011001011010000110…
…1100100111111010001
3200100120221200011112022
42302310031210333101
511121210004104111
6224112101341225
716604663143652
oct2626415447721
9610527604468
10192002019281
1174478152986
1231265107815
131514b3351c7
149415bc1529
154edb2272db
hex2cb4364fd1

192002019281 has 2 divisors, whose sum is σ = 192002019282. Its totient is φ = 192002019280.

The previous prime is 192002019271. The next prime is 192002019283. The reversal of 192002019281 is 182910200291.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103308245056 + 88693774225 = 321416^2 + 297815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-192002019281 is a prime.

It is a super-3 number, since 3×1920020192813 (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 192002019283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (192002019283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96001009640 + 96001009641.

It is an arithmetic number, because the mean of its divisors is an integer number (96001009641).

Almost surely, 2192002019281 is an apocalyptic number.

It is an amenable number.

192002019281 is a deficient number, since it is larger than the sum of its proper divisors (1).

192002019281 is an equidigital number, since it uses as much as digits as its factorization.

192002019281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 35.

The spelling of 192002019281 in words is "one hundred ninety-two billion, two million, nineteen thousand, two hundred eighty-one".