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28583137 = 1117152851
BaseRepresentation
bin110110100001…
…0010011100001
31222210011200201
41231002103201
524304130022
62500345201
7464644522
oct155022341
958704621
1028583137
1115152a30
1296a5201
135bca0cb
143b20849
152799127
hex1b424e1

28583137 has 8 divisors (see below), whose sum is σ = 33016032. Its totient is φ = 24456000.

The previous prime is 28583131. The next prime is 28583141. The reversal of 28583137 is 73138582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28583137 - 211 = 28581089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28583096 and 28583105.

It is not an unprimeable number, because it can be changed into a prime (28583131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76239 + ... + 76612.

It is an arithmetic number, because the mean of its divisors is an integer number (4127004).

Almost surely, 228583137 is an apocalyptic number.

It is an amenable number.

28583137 is a deficient number, since it is larger than the sum of its proper divisors (4432895).

28583137 is a wasteful number, since it uses less digits than its factorization.

28583137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152879.

The product of its digits is 40320, while the sum is 37.

The square root of 28583137 is about 5346.3199492735. The cubic root of 28583137 is about 305.7524626032.

It can be divided in two parts, 2858 and 3137, that added together give a palindrome (5995).

The spelling of 28583137 in words is "twenty-eight million, five hundred eighty-three thousand, one hundred thirty-seven".

Divisors: 1 11 17 187 152851 1681361 2598467 28583137