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27998348 = 2275771733
BaseRepresentation
bin110101011001…
…1100010001100
31221200110111212
41222303202030
524131421343
62440033552
7456660560
oct152634214
957613455
1027998348
1114893634
1294628b8
135a53b91
143a0b6a0
1526d0c18
hex1ab388c

27998348 has 24 divisors (see below), whose sum is σ = 56126112. Its totient is φ = 11971584.

The previous prime is 27998287. The next prime is 27998359. The reversal of 27998348 is 84389972.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 27998296 and 27998305.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15290 + ... + 17022.

It is an arithmetic number, because the mean of its divisors is an integer number (2338588).

Almost surely, 227998348 is an apocalyptic number.

27998348 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

27998348 is an abundant number, since it is smaller than the sum of its proper divisors (28127764).

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

27998348 is a wasteful number, since it uses less digits than its factorization.

27998348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321 (or 2319 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 27998348 is about 5291.3465204993. The cubic root of 27998348 is about 303.6529251118.

The spelling of 27998348 in words is "twenty-seven million, nine hundred ninety-eight thousand, three hundred forty-eight".

Divisors: 1 2 4 7 14 28 577 1154 1733 2308 3466 4039 6932 8078 12131 16156 24262 48524 999941 1999882 3999764 6999587 13999174 27998348