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4144661 = 13730253
BaseRepresentation
bin1111110011111000010101
321210120101222
433303320111
52030112121
6224500125
750141363
oct17637025
97716358
104144661
112380a44
12147a645
13b21681
1479c633
1556d0ab
hex3f3e15

4144661 has 4 divisors (see below), whose sum is σ = 4175052. Its totient is φ = 4114272.

The previous prime is 4144633. The next prime is 4144663. The reversal of 4144661 is 1664414.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3352561 + 792100 = 1831^2 + 890^2 .

It is a cyclic number.

It is not a de Polignac number, because 4144661 - 210 = 4143637 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4144661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4144663) 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, 14990 + ... + 15263.

It is an arithmetic number, because the mean of its divisors is an integer number (1043763).

Almost surely, 24144661 is an apocalyptic number.

It is an amenable number.

4144661 is a deficient number, since it is larger than the sum of its proper divisors (30391).

4144661 is a wasteful number, since it uses less digits than its factorization.

4144661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30390.

The product of its digits is 2304, while the sum is 26.

The square root of 4144661 is about 2035.8440510019. The cubic root of 4144661 is about 160.6311140915.

The spelling of 4144661 in words is "four million, one hundred forty-four thousand, six hundred sixty-one".

Divisors: 1 137 30253 4144661