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18060897 = 36020299
BaseRepresentation
bin100010011100…
…1011001100001
31020222120220010
41010321121201
514110422042
61443035133
7306341451
oct104713141
936876803
1018060897
11a216468
12606baa9
13398492a
142581d61
1518bb59c
hex1139661

18060897 has 4 divisors (see below), whose sum is σ = 24081200. Its totient is φ = 12040596.

The previous prime is 18060893. The next prime is 18060923. The reversal of 18060897 is 79806081.

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: 79806081 = 326602027.

It is not a de Polignac number, because 18060897 - 22 = 18060893 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18060893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3010147 + ... + 3010152.

It is an arithmetic number, because the mean of its divisors is an integer number (6020300).

Almost surely, 218060897 is an apocalyptic number.

It is an amenable number.

18060897 is a deficient number, since it is larger than the sum of its proper divisors (6020303).

18060897 is an equidigital number, since it uses as much as digits as its factorization.

18060897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6020302.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 18060897 is about 4249.8114075803. The cubic root of 18060897 is about 262.3693535821.

The spelling of 18060897 in words is "eighteen million, sixty thousand, eight hundred ninety-seven".

Divisors: 1 3 6020299 18060897