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28833597 = 331327189
BaseRepresentation
bin110110111111…
…1011100111101
32000020220021000
41231333130331
524340133342
62510000513
7500036652
oct155773475
960226230
1028833597
1115304121
1297a6139
135c87100
143b87c29
1527e844c
hex1b7f73d

28833597 has 48 divisors (see below), whose sum is σ = 47433600. Its totient is φ = 17297280.

The previous prime is 28833593. The next prime is 28833599. The reversal of 28833597 is 79533882.

28833597 is a `hidden beast` number, since 28 + 8 + 33 + 597 = 666.

It is not a de Polignac number, because 28833597 - 22 = 28833593 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28833593) 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 in 47 ways as a sum of consecutive naturals, for example, 323929 + ... + 324017.

It is an arithmetic number, because the mean of its divisors is an integer number (988200).

Almost surely, 228833597 is an apocalyptic number.

28833597 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

28833597 is a deficient number, since it is larger than the sum of its proper divisors (18600003).

28833597 is a wasteful number, since it uses less digits than its factorization.

28833597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 176 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 28833597 is about 5369.6924492935. The cubic root of 28833597 is about 306.6429196850.

The spelling of 28833597 in words is "twenty-eight million, eight hundred thirty-three thousand, five hundred ninety-seven".

Divisors: 1 3 9 13 27 39 71 89 117 169 213 267 351 507 639 801 923 1157 1521 1917 2403 2769 3471 4563 6319 8307 10413 11999 15041 18957 24921 31239 35997 45123 56871 82147 107991 135369 170613 246441 323973 406107 739323 1067911 2217969 3203733 9611199 28833597