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544069 = 2973257
BaseRepresentation
bin10000100110101000101
31000122022201
42010311011
5114402234
615354501
74424131
oct2046505
91018281
10544069
11341849
12222a31
13160846
141023c1
15ab314
hex84d45

544069 has 8 divisors (see below), whose sum is σ = 572760. Its totient is φ = 516096.

The previous prime is 544031. The next prime is 544097. The reversal of 544069 is 960445.

It can be written as a sum of positive squares in 4 ways, for example, as 263169 + 280900 = 513^2 + 530^2 .

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

It is a 7-Lehmer number, since φ(544069) divides (544069-1)7.

It is a cyclic number.

It is not a de Polignac number, because 544069 - 211 = 542021 is a prime.

It is a super-2 number, since 2×5440692 = 592022153522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1989 + ... + 2245.

It is an arithmetic number, because the mean of its divisors is an integer number (71595).

2544069 is an apocalyptic number.

It is an amenable number.

544069 is a deficient number, since it is larger than the sum of its proper divisors (28691).

544069 is a wasteful number, since it uses less digits than its factorization.

544069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 544069 is about 737.6103307303. The cubic root of 544069 is about 81.6365532920.

The spelling of 544069 in words is "five hundred forty-four thousand, sixty-nine".

Divisors: 1 29 73 257 2117 7453 18761 544069