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16291371 = 315313547
BaseRepresentation
bin111110001001…
…011000101011
31010122200120010
4332021120223
513132310441
61341103003
7255321465
oct76113053
933580503
1016291371
119217a48
125557a63
1334b5385
142241135
15166c116
hexf8962b

16291371 has 8 divisors (see below), whose sum is σ = 21742144. Its totient is φ = 10850760.

The previous prime is 16291357. The next prime is 16291381. The reversal of 16291371 is 17319261.

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

It is not a de Polignac number, because 16291371 - 210 = 16290347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16291381) 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, 2820 + ... + 6366.

It is an arithmetic number, because the mean of its divisors is an integer number (2717768).

Almost surely, 216291371 is an apocalyptic number.

16291371 is a deficient number, since it is larger than the sum of its proper divisors (5450773).

16291371 is a wasteful number, since it uses less digits than its factorization.

16291371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5081.

The product of its digits is 2268, while the sum is 30.

The square root of 16291371 is about 4036.2570532611. The cubic root of 16291371 is about 253.5046196576.

The spelling of 16291371 in words is "sixteen million, two hundred ninety-one thousand, three hundred seventy-one".

Divisors: 1 3 1531 3547 4593 10641 5430457 16291371