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1208897 = 9111327
BaseRepresentation
bin100100111001001000001
32021102021222
410213021001
5302141042
641524425
713163324
oct4471101
92242258
101208897
11756298
124a3715
13334331
142367bb
1518d2d2
hex127241

1208897 has 4 divisors (see below), whose sum is σ = 1211136. Its totient is φ = 1206660.

The previous prime is 1208873. The next prime is 1208927. The reversal of 1208897 is 7988021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7988021 = 29275449.

It is a cyclic number.

It is not a de Polignac number, because 1208897 - 26 = 1208833 is a prime.

It is a super-2 number, since 2×12088972 = 2922863913218, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (1208297) 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, 248 + ... + 1574.

It is an arithmetic number, because the mean of its divisors is an integer number (302784).

21208897 is an apocalyptic number.

It is an amenable number.

1208897 is a deficient number, since it is larger than the sum of its proper divisors (2239).

1208897 is an equidigital number, since it uses as much as digits as its factorization.

1208897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238.

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 1208897 is about 1099.4985220545. The cubic root of 1208897 is about 106.5278347899.

The spelling of 1208897 in words is "one million, two hundred eight thousand, eight hundred ninety-seven".

Divisors: 1 911 1327 1208897