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28147129382133 = 3222713777351631
BaseRepresentation
bin1100110011001100000111…
…01001011111010011110101
310200122211122211201220222100
412121212003221133103311
512142130310110212013
6135510340203252313
75633364051115116
oct631460351372365
9120584584656870
1028147129382133
118a72148818763
1231a712881a099
131292355803298
146d4484d2420d
1533c288892473
hex199983a5f4f5

28147129382133 has 12 divisors (see below), whose sum is σ = 40836070237248. Its totient is φ = 18682088810280.

The previous prime is 28147129382083. The next prime is 28147129382137. The reversal of 28147129382133 is 33128392174182.

28147129382133 is a `hidden beast` number, since 2 + 8 + 1 + 4 + 7 + 129 + 382 + 133 = 666.

It is not a de Polignac number, because 28147129382133 - 221 = 28147127284981 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28147129382133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28147129382137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6888673773 + ... + 6888677858.

It is an arithmetic number, because the mean of its divisors is an integer number (3403005853104).

Almost surely, 228147129382133 is an apocalyptic number.

It is an amenable number.

28147129382133 is a deficient number, since it is larger than the sum of its proper divisors (12688940855115).

28147129382133 is a wasteful number, since it uses less digits than its factorization.

28147129382133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13777351864 (or 13777351861 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 28147129382133 in words is "twenty-eight trillion, one hundred forty-seven billion, one hundred twenty-nine million, three hundred eighty-two thousand, one hundred thirty-three".

Divisors: 1 3 9 227 681 2043 13777351631 41332054893 123996164679 3127458820237 9382376460711 28147129382133