Search a number
-
+
2015287 is a prime number
BaseRepresentation
bin111101100000000110111
310210101110021
413230000313
51003442122
6111110011
723062321
oct7540067
93711407
102015287
11115712a
12812307
135573a1
143a6611
1529c1c7
hex1ec037

2015287 has 2 divisors, whose sum is σ = 2015288. Its totient is φ = 2015286.

The previous prime is 2015269. The next prime is 2015303. The reversal of 2015287 is 7825102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2015287 - 219 = 1490999 is a prime.

It is a super-2 number, since 2×20152872 = 8122763384738, which contains 22 as substring.

It is a zygodrome in base 6.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2015267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007643 + 1007644.

It is an arithmetic number, because the mean of its divisors is an integer number (1007644).

22015287 is an apocalyptic number.

2015287 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015287 is an equidigital number, since it uses as much as digits as its factorization.

2015287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2015287 is about 1419.6080444968. The cubic root of 2015287 is about 126.3122974577.

The spelling of 2015287 in words is "two million, fifteen thousand, two hundred eighty-seven".