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16190289 = 321798921
BaseRepresentation
bin111101110000…
…101101010001
31010110112220100
4331300231101
513121042124
61335003013
7254421003
oct75605521
933415810
1016190289
119159005
125509469
13347b36b
142216373
15164c1c9
hexf70b51

16190289 has 6 divisors (see below), whose sum is σ = 23385986. Its totient is φ = 10793520.

The previous prime is 16190287. The next prime is 16190309. The reversal of 16190289 is 98209161.

It can be written as a sum of positive squares in only one way, i.e., 15563025 + 627264 = 3945^2 + 792^2 .

It is not a de Polignac number, because 16190289 - 21 = 16190287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16190287) 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 5 ways as a sum of consecutive naturals, for example, 899452 + ... + 899469.

Almost surely, 216190289 is an apocalyptic number.

It is an amenable number.

16190289 is a deficient number, since it is larger than the sum of its proper divisors (7195697).

16190289 is a wasteful number, since it uses less digits than its factorization.

16190289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798927 (or 1798924 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 16190289 is about 4023.7158199853. The cubic root of 16190289 is about 252.9792303822.

The spelling of 16190289 in words is "sixteen million, one hundred ninety thousand, two hundred eighty-nine".

Divisors: 1 3 9 1798921 5396763 16190289