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16290493 = 83196271
BaseRepresentation
bin111110001001…
…001010111101
31010122122100121
4332021022331
513132243433
61341054541
7255316102
oct76111275
933578317
1016290493
11921731a
125557451
1334b4b5b
142240aa9
15166bc2d
hexf892bd

16290493 has 4 divisors (see below), whose sum is σ = 16486848. Its totient is φ = 16094140.

The previous prime is 16290473. The next prime is 16290497. The reversal of 16290493 is 39409261.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-16290493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16290497) 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, 98053 + ... + 98218.

It is an arithmetic number, because the mean of its divisors is an integer number (4121712).

Almost surely, 216290493 is an apocalyptic number.

It is an amenable number.

16290493 is a deficient number, since it is larger than the sum of its proper divisors (196355).

16290493 is an equidigital number, since it uses as much as digits as its factorization.

16290493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196354.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 16290493 is about 4036.1482876624. The cubic root of 16290493 is about 253.5000654868.

The spelling of 16290493 in words is "sixteen million, two hundred ninety thousand, four hundred ninety-three".

Divisors: 1 83 196271 16290493