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28617083 = 1123113111
BaseRepresentation
bin110110100101…
…0100101111011
31222211220020222
41231022211323
524311221313
62501210255
7465145505
oct155124573
958756228
1028617083
1115176490
12970098b
135c0c6b1
143b2cd75
1527a4208
hex1b4a97b

28617083 has 8 divisors (see below), whose sum is σ = 32576256. Its totient is φ = 24884200.

The previous prime is 28617079. The next prime is 28617109. The reversal of 28617083 is 38071682.

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

It is not a de Polignac number, because 28617083 - 22 = 28617079 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28617013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56303 + ... + 56808.

It is an arithmetic number, because the mean of its divisors is an integer number (4072032).

Almost surely, 228617083 is an apocalyptic number.

28617083 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28617083 is a deficient number, since it is larger than the sum of its proper divisors (3959173).

28617083 is a wasteful number, since it uses less digits than its factorization.

28617083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113145.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 28617083 is about 5349.4937143621. The cubic root of 28617083 is about 305.8734543030.

The spelling of 28617083 in words is "twenty-eight million, six hundred seventeen thousand, eighty-three".

Divisors: 1 11 23 253 113111 1244221 2601553 28617083