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16021141 = 31516811
BaseRepresentation
bin111101000111…
…011010010101
31010010221212121
4331013122111
513100134031
61331215541
7253114603
oct75073225
933127777
1016021141
119052a14
1254475b1
13341c386
1421b0873
151617011
hexf47695

16021141 has 4 divisors (see below), whose sum is σ = 16537984. Its totient is φ = 15504300.

The previous prime is 16021139. The next prime is 16021151. The reversal of 16021141 is 14112061.

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 not a de Polignac number, because 16021141 - 21 = 16021139 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 (16021151) 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, 258375 + ... + 258436.

It is an arithmetic number, because the mean of its divisors is an integer number (4134496).

Almost surely, 216021141 is an apocalyptic number.

It is an amenable number.

16021141 is a deficient number, since it is larger than the sum of its proper divisors (516843).

16021141 is an equidigital number, since it uses as much as digits as its factorization.

16021141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516842.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 16021141 is about 4002.6417526429. The cubic root of 16021141 is about 252.0951444291.

The spelling of 16021141 in words is "sixteen million, twenty-one thousand, one hundred forty-one".

Divisors: 1 31 516811 16021141