Search a number
-
+
60012171281 is a prime number
BaseRepresentation
bin110111111001000000…
…010001000000010001
312201220100111011121102
4313321000101000101
51440401103440111
643322541034145
74223105016326
oct677100210021
9181810434542
1060012171281
11234a6340577
12b769b55955
13587512c12a
142c94340b4d
15186385913b
hexdf9011011

60012171281 has 2 divisors, whose sum is σ = 60012171282. Its totient is φ = 60012171280.

The previous prime is 60012171277. The next prime is 60012171287. The reversal of 60012171281 is 18217121006.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53924270656 + 6087900625 = 232216^2 + 78025^2 .

It is a cyclic number.

It is not a de Polignac number, because 60012171281 - 22 = 60012171277 is a prime.

It is a super-2 number, since 2×600121712812 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (60012171287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30006085640 + 30006085641.

It is an arithmetic number, because the mean of its divisors is an integer number (30006085641).

Almost surely, 260012171281 is an apocalyptic number.

It is an amenable number.

60012171281 is a deficient number, since it is larger than the sum of its proper divisors (1).

60012171281 is an equidigital number, since it uses as much as digits as its factorization.

60012171281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 29.

Adding to 60012171281 its reverse (18217121006), we get a palindrome (78229292287).

The spelling of 60012171281 in words is "sixty billion, twelve million, one hundred seventy-one thousand, two hundred eighty-one".