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544417 = 2918773
BaseRepresentation
bin10000100111010100001
31000122210121
42010322201
5114410132
615400241
74425136
oct2047241
91018717
10544417
11342035
12223081
13160a53
1410258d
15ab497
hex84ea1

544417 has 4 divisors (see below), whose sum is σ = 563220. Its totient is φ = 525616.

The previous prime is 544403. The next prime is 544429. The reversal of 544417 is 714445.

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 463761 + 80656 = 681^2 + 284^2 .

It is a cyclic number.

It is not a de Polignac number, because 544417 - 219 = 20129 is a prime.

It is a Duffinian number.

544417 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 544391 and 544400.

It is not an unprimeable number, because it can be changed into a prime (544477) 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, 9358 + ... + 9415.

It is an arithmetic number, because the mean of its divisors is an integer number (140805).

2544417 is an apocalyptic number.

It is an amenable number.

544417 is a deficient number, since it is larger than the sum of its proper divisors (18803).

544417 is a wasteful number, since it uses less digits than its factorization.

544417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18802.

The product of its digits is 2240, while the sum is 25.

The square root of 544417 is about 737.8461899339. The cubic root of 544417 is about 81.6539551690.

It can be divided in two parts, 544 and 417, that added together give a square (961 = 312).

The spelling of 544417 in words is "five hundred forty-four thousand, four hundred seventeen".

Divisors: 1 29 18773 544417