Search a number
-
+
11870455279 is a prime number
BaseRepresentation
bin10110000111000100…
…01100010111101111
31010122021100121101211
423003202030113233
5143302314032104
65241521015251
7600106130224
oct130342142757
933567317354
1011870455279
115041620821
122373484527
131172378347
1480873994b
154971d1e04
hex2c388c5ef

11870455279 has 2 divisors, whose sum is σ = 11870455280. Its totient is φ = 11870455278.

The previous prime is 11870455229. The next prime is 11870455297. The reversal of 11870455279 is 97255407811.

Together with next prime (11870455297) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (97255407811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11870455279 - 215 = 11870422511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11870455229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5935227639 + 5935227640.

It is an arithmetic number, because the mean of its divisors is an integer number (5935227640).

Almost surely, 211870455279 is an apocalyptic number.

11870455279 is a deficient number, since it is larger than the sum of its proper divisors (1).

11870455279 is an equidigital number, since it uses as much as digits as its factorization.

11870455279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705600, while the sum is 49.

The spelling of 11870455279 in words is "eleven billion, eight hundred seventy million, four hundred fifty-five thousand, two hundred seventy-nine".