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28583086 = 2717120097
BaseRepresentation
bin110110100001…
…0010010101110
31222210011121211
41231002102232
524304124321
62500345034
7464644420
oct155022256
958704554
1028583086
1115152994
1296a517a
135bca08c
143b20810
1527990e1
hex1b424ae

28583086 has 16 divisors (see below), whose sum is σ = 51882336. Its totient is φ = 11529216.

The previous prime is 28583083. The next prime is 28583119. The reversal of 28583086 is 68038582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28583083) 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, 59811 + ... + 60286.

It is an arithmetic number, because the mean of its divisors is an integer number (3242646).

Almost surely, 228583086 is an apocalyptic number.

28583086 is a deficient number, since it is larger than the sum of its proper divisors (23299250).

28583086 is a wasteful number, since it uses less digits than its factorization.

28583086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120123.

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 28583086 is about 5346.3151796354. The cubic root of 28583086 is about 305.7522807549.

The spelling of 28583086 in words is "twenty-eight million, five hundred eighty-three thousand, eighty-six".

Divisors: 1 2 7 14 17 34 119 238 120097 240194 840679 1681358 2041649 4083298 14291543 28583086