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28134693119 = 1315769119949
BaseRepresentation
bin11010001100111101…
…010101100011111111
32200121202101111101002
4122030331111203333
5430104440134434
620531440040515
72014126642241
oct321475254377
980552344332
1028134693119
1110a283343a5
12555230313b
132864aba710
14150c812091
15ae9ec057e
hex68cf558ff

28134693119 has 16 divisors (see below), whose sum is σ = 30537544800. Its totient is φ = 25766432640.

The previous prime is 28134693113. The next prime is 28134693143. The reversal of 28134693119 is 91139643182.

It is a de Polignac number, because none of the positive numbers 2k-28134693119 is a prime.

It is a super-2 number, since 2×281346931192 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28134693113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1400357 + ... + 1420305.

It is an arithmetic number, because the mean of its divisors is an integer number (1908596550).

Almost surely, 228134693119 is an apocalyptic number.

28134693119 is a deficient number, since it is larger than the sum of its proper divisors (2402851681).

28134693119 is a wasteful number, since it uses less digits than its factorization.

28134693119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20810.

The product of its digits is 279936, while the sum is 47.

The spelling of 28134693119 in words is "twenty-eight billion, one hundred thirty-four million, six hundred ninety-three thousand, one hundred nineteen".

Divisors: 1 13 157 691 2041 8983 19949 108487 259337 1410331 3131993 13784759 40715909 179201867 2164207163 28134693119