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28962135 = 325173131
BaseRepresentation
bin110111001111…
…0110101010111
32000111102120200
41232132311113
524403242020
62512431543
7501113466
oct156366527
960442520
1028962135
1115391754
1298485b3
136000777
143bbc9dd
152821590
hex1b9ed57

28962135 has 48 divisors (see below), whose sum is σ = 53745120. Its totient is φ = 14426880.

The previous prime is 28962127. The next prime is 28962161. The reversal of 28962135 is 53126982.

28962135 is a `hidden beast` number, since 28 + 9 + 621 + 3 + 5 = 666.

It is not a de Polignac number, because 28962135 - 23 = 28962127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28962135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 221020 + ... + 221150.

It is an arithmetic number, because the mean of its divisors is an integer number (1119690).

Almost surely, 228962135 is an apocalyptic number.

28962135 is a deficient number, since it is larger than the sum of its proper divisors (24782985).

28962135 is a wasteful number, since it uses less digits than its factorization.

28962135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 156 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 28962135 is about 5381.6479817989. The cubic root of 28962135 is about 307.0979079191.

The spelling of 28962135 in words is "twenty-eight million, nine hundred sixty-two thousand, one hundred thirty-five".

Divisors: 1 3 5 9 15 17 45 51 85 131 153 255 289 393 655 765 867 1179 1445 1965 2227 2601 4335 4913 5895 6681 11135 13005 14739 20043 24565 33405 37859 44217 73695 100215 113577 189295 221085 340731 567885 643603 1703655 1930809 3218015 5792427 9654045 28962135