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28146027 = 3713103099
BaseRepresentation
bin110101101011…
…1100101101011
31221221222002110
41223113211223
524201133102
62443133403
7461144250
oct153274553
957858073
1028146027
1114984588
129514263
135aa6170
143a49427
15270e86c
hex1ad796b

28146027 has 16 divisors (see below), whose sum is σ = 46188800. Its totient is φ = 14846112.

The previous prime is 28146023. The next prime is 28146031. The reversal of 28146027 is 72064182.

It is an interprime number because it is at equal distance from previous prime (28146023) and next prime (28146031).

It is not a de Polignac number, because 28146027 - 22 = 28146023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28145985 and 28146003.

It is not an unprimeable number, because it can be changed into a prime (28146023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51277 + ... + 51822.

It is an arithmetic number, because the mean of its divisors is an integer number (2886800).

Almost surely, 228146027 is an apocalyptic number.

28146027 is a deficient number, since it is larger than the sum of its proper divisors (18042773).

28146027 is a wasteful number, since it uses less digits than its factorization.

28146027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103122.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 28146027 is about 5305.2829330772. The cubic root of 28146027 is about 304.1858678398.

The spelling of 28146027 in words is "twenty-eight million, one hundred forty-six thousand, twenty-seven".

Divisors: 1 3 7 13 21 39 91 273 103099 309297 721693 1340287 2165079 4020861 9382009 28146027