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16106641 = 82919429
BaseRepresentation
bin111101011100…
…010010010001
31010022022011021
4331130102101
513110403031
61333115441
7253622065
oct75342221
933268137
1016106641
119101181
125488b81
13344c275
1421d3aa5
151632511
hexf5c491

16106641 has 4 divisors (see below), whose sum is σ = 16126900. Its totient is φ = 16086384.

The previous prime is 16106627. The next prime is 16106659. The reversal of 16106641 is 14660161.

16106641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14660161 = 48730103.

It can be written as a sum of positive squares in 2 ways, for example, as 3254416 + 12852225 = 1804^2 + 3585^2 .

It is a cyclic number.

It is not a de Polignac number, because 16106641 - 217 = 15975569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16106341) 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, 8886 + ... + 10543.

It is an arithmetic number, because the mean of its divisors is an integer number (4031725).

Almost surely, 216106641 is an apocalyptic number.

It is an amenable number.

16106641 is a deficient number, since it is larger than the sum of its proper divisors (20259).

16106641 is an equidigital number, since it uses as much as digits as its factorization.

16106641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20258.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 16106641 is about 4013.3079871846. The cubic root of 16106641 is about 252.5428009659.

The spelling of 16106641 in words is "sixteen million, one hundred six thousand, six hundred forty-one".

Divisors: 1 829 19429 16106641