Search a number
-
+
1078979287 is a prime number
BaseRepresentation
bin100000001001111…
…1110101011010111
32210012021211022211
41000103332223113
54202204314122
6255022134251
735511113131
oct10023765327
92705254284
101078979287
11504068121
12261421387
13142700aa9
14a342a051
1564ad2877
hex404fead7

1078979287 has 2 divisors, whose sum is σ = 1078979288. Its totient is φ = 1078979286.

The previous prime is 1078979267. The next prime is 1078979309. The reversal of 1078979287 is 7829798701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1078979287 - 27 = 1078979159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1078979227) 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 as a sum of consecutive naturals, namely, 539489643 + 539489644.

It is an arithmetic number, because the mean of its divisors is an integer number (539489644).

Almost surely, 21078979287 is an apocalyptic number.

1078979287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1078979287 is an equidigital number, since it uses as much as digits as its factorization.

1078979287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3556224, while the sum is 58.

The square root of 1078979287 is about 32847.8201255426. The cubic root of 1078979287 is about 1025.6622448898.

The spelling of 1078979287 in words is "one billion, seventy-eight million, nine hundred seventy-nine thousand, two hundred eighty-seven".