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8124100819 is a prime number
BaseRepresentation
bin1111001000011101…
…11111000011010011
3202222011221002012221
413210032333003103
5113114232211234
63422051401511
7405215501062
oct74416770323
922864832187
108124100819
11349993020a
1216a88b3297
139c6174763
14570d701d9
15328360eb4
hex1e43bf0d3

8124100819 has 2 divisors, whose sum is σ = 8124100820. Its totient is φ = 8124100818.

The previous prime is 8124100781. The next prime is 8124100837. The reversal of 8124100819 is 9180014218.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8124100819 - 229 = 7587229907 is a prime.

It is a super-2 number, since 2×81241008192 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8124104819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4062050409 + 4062050410.

It is an arithmetic number, because the mean of its divisors is an integer number (4062050410).

Almost surely, 28124100819 is an apocalyptic number.

8124100819 is a deficient number, since it is larger than the sum of its proper divisors (1).

8124100819 is an equidigital number, since it uses as much as digits as its factorization.

8124100819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 8124100819 is about 90133.7939898238. The cubic root of 8124100819 is about 2010.2887153235.

The spelling of 8124100819 in words is "eight billion, one hundred twenty-four million, one hundred thousand, eight hundred nineteen".