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530105545 = 5977108517
BaseRepresentation
bin11111100110001…
…100010011001001
31100221111011002201
4133212030103021
52041201334140
6124334000201
716064552134
oct3746142311
91327434081
10530105545
1125225a162
12129646061
1385a96128
145059121b
153181349a
hex1f98c4c9

530105545 has 8 divisors (see below), whose sum is σ = 636783624. Its totient is φ = 423646464.

The previous prime is 530105507. The next prime is 530105557. The reversal of 530105545 is 545501035.

It can be written as a sum of positive squares in 4 ways, for example, as 247495824 + 282609721 = 15732^2 + 16811^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 530105545 - 219 = 529581257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49374 + ... + 59143.

It is an arithmetic number, because the mean of its divisors is an integer number (79597953).

Almost surely, 2530105545 is an apocalyptic number.

It is an amenable number.

530105545 is a deficient number, since it is larger than the sum of its proper divisors (106678079).

530105545 is a wasteful number, since it uses less digits than its factorization.

530105545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109499.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 530105545 is about 23024.0210432496. The cubic root of 530105545 is about 809.3209494572.

The spelling of 530105545 in words is "five hundred thirty million, one hundred five thousand, five hundred forty-five".

Divisors: 1 5 977 4885 108517 542585 106021109 530105545