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8978552879 is a prime number
BaseRepresentation
bin10000101110010100…
…11101100000101111
3212011201201202002112
420113022131200233
5121342002143004
64042533314235
7435332304002
oct102712354057
925151652075
108978552879
11389818273a
1218a6a9597b
13b011b12aa
14612631539
15378391e6e
hex21729d82f

8978552879 has 2 divisors, whose sum is σ = 8978552880. Its totient is φ = 8978552878.

The previous prime is 8978552857. The next prime is 8978552893. The reversal of 8978552879 is 9782558798.

8978552879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8978552879 - 28 = 8978552623 is a prime.

It is a super-2 number, since 2×89785528792 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8978552899) 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, 4489276439 + 4489276440.

It is an arithmetic number, because the mean of its divisors is an integer number (4489276440).

Almost surely, 28978552879 is an apocalyptic number.

8978552879 is a deficient number, since it is larger than the sum of its proper divisors (1).

8978552879 is an equidigital number, since it uses as much as digits as its factorization.

8978552879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 101606400, while the sum is 68.

The square root of 8978552879 is about 94755.2261302774. The cubic root of 8978552879 is about 2078.4302195971.

The spelling of 8978552879 in words is "eight billion, nine hundred seventy-eight million, five hundred fifty-two thousand, eight hundred seventy-nine".