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8128512014 = 271075426243
BaseRepresentation
bin1111001000111111…
…10100000000001110
3202222111020012020112
413210133310000032
5113121344341024
63422330120022
7405301132520
oct74437640016
922874205215
108128512014
1134a1373427
1216aa280012
139c705a52c
1457179ba10
1532893300e
hex1e47f400e

8128512014 has 16 divisors (see below), whose sum is σ = 14064824448. Its totient is φ = 3451089912.

The previous prime is 8128512011. The next prime is 8128512019. The reversal of 8128512014 is 4102158218.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8128512011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2711624 + ... + 2714619.

It is an arithmetic number, because the mean of its divisors is an integer number (879051528).

Almost surely, 28128512014 is an apocalyptic number.

8128512014 is a deficient number, since it is larger than the sum of its proper divisors (5936312434).

8128512014 is a wasteful number, since it uses less digits than its factorization.

8128512014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426359.

The product of its (nonzero) digits is 5120, while the sum is 32.

The square root of 8128512014 is about 90158.2609304328. The cubic root of 8128512014 is about 2010.6524959320.

The spelling of 8128512014 in words is "eight billion, one hundred twenty-eight million, five hundred twelve thousand, fourteen".

Divisors: 1 2 7 14 107 214 749 1498 5426243 10852486 37983701 75967402 580608001 1161216002 4064256007 8128512014