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27101897 = 972711031
BaseRepresentation
bin110011101100…
…0101011001001
31212222220210222
41213120223021
523414230042
62404515425
7446235164
oct147305311
955886728
1027101897
1114331069
1290abb75
1357cbb34
143856adb
1525a52d2
hex19d8ac9

27101897 has 8 divisors (see below), whose sum is σ = 27508992. Its totient is φ = 26697600.

The previous prime is 27101891. The next prime is 27101909. The reversal of 27101897 is 79810172.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-27101897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27101891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25772 + ... + 26802.

It is an arithmetic number, because the mean of its divisors is an integer number (3438624).

Almost surely, 227101897 is an apocalyptic number.

It is an amenable number.

27101897 is a deficient number, since it is larger than the sum of its proper divisors (407095).

27101897 is a wasteful number, since it uses less digits than its factorization.

27101897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399.

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 27101897 is about 5205.9482325509. The cubic root of 27101897 is about 300.3769225293.

The spelling of 27101897 in words is "twenty-seven million, one hundred one thousand, eight hundred ninety-seven".

Divisors: 1 97 271 1031 26287 100007 279401 27101897