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27997082 = 222961129
BaseRepresentation
bin110101011001…
…1001110011010
31221200101202222
41222303032122
524131401312
62440024042
7456654101
oct152631632
957611688
1027997082
1114892693
129462022
135a53429
143a0b038
1526d0672
hex1ab339a

27997082 has 8 divisors (see below), whose sum is σ = 42179700. Its totient is φ = 13937184.

The previous prime is 27997069. The next prime is 27997087. The reversal of 27997082 is 28079972.

It can be written as a sum of positive squares in 2 ways, for example, as 27994681 + 2401 = 5291^2 + 49^2 .

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

It is not an unprimeable number, because it can be changed into a prime (27997087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30107 + ... + 31022.

Almost surely, 227997082 is an apocalyptic number.

27997082 is a deficient number, since it is larger than the sum of its proper divisors (14182618).

27997082 is a wasteful number, since it uses less digits than its factorization.

27997082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61360.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 27997082 is about 5291.2268898621. The cubic root of 27997082 is about 303.6483482894.

The spelling of 27997082 in words is "twenty-seven million, nine hundred ninety-seven thousand, eighty-two".

Divisors: 1 2 229 458 61129 122258 13998541 27997082