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27146028 = 22371324859
BaseRepresentation
bin110011110001…
…1011100101100
31220002011100110
41213203130230
523422133103
62405500020
7446510640
oct147433454
956064313
1027146028
1114361238
129111610
135815c50
143868c20
1525b3403
hex19e372c

27146028 has 48 divisors (see below), whose sum is σ = 77960960. Its totient is φ = 7159104.

The previous prime is 27146023. The next prime is 27146033. The reversal of 27146028 is 82064172.

It is an interprime number because it is at equal distance from previous prime (27146023) and next prime (27146033).

It is a junction number, because it is equal to n+sod(n) for n = 27145986 and 27146004.

It is not an unprimeable number, because it can be changed into a prime (27146023) 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, 11338 + ... + 13521.

Almost surely, 227146028 is an apocalyptic number.

27146028 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27146028 is an abundant number, since it is smaller than the sum of its proper divisors (50814932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27146028 is a wasteful number, since it uses less digits than its factorization.

27146028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24886 (or 24884 counting only the distinct ones).

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

The square root of 27146028 is about 5210.1850255053. The cubic root of 27146028 is about 300.5398723212.

The spelling of 27146028 in words is "twenty-seven million, one hundred forty-six thousand, twenty-eight".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 273 364 546 1092 24859 49718 74577 99436 149154 174013 298308 323167 348026 522039 646334 696052 969501 1044078 1292668 1939002 2088156 2262169 3878004 4524338 6786507 9048676 13573014 27146028