Base | Representation |
---|---|
bin | 1011110110011000… |
… | …0100000101101101 |
3 | 22012200101001010202 |
4 | 2331212010011231 |
5 | 23003300401140 |
6 | 1243345043245 |
7 | 141552652301 |
oct | 27546040555 |
9 | 8180331122 |
10 | 3180872045 |
11 | 139257927a |
12 | 749326525 |
13 | 3b9002310 |
14 | 222649d01 |
15 | 1393c0915 |
hex | bd98416d |
3180872045 has 16 divisors (see below), whose sum is σ = 4210929072. Its totient is φ = 2291658240.
The previous prime is 3180872033. The next prime is 3180872077. The reversal of 3180872045 is 5402780813.
3180872045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 8 ways, for example, as 2055806281 + 1125065764 = 45341^2 + 33542^2 .
It is not a de Polignac number, because 3180872045 - 24 = 3180872029 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 594122 + ... + 599451.
It is an arithmetic number, because the mean of its divisors is an integer number (263183067).
Almost surely, 23180872045 is an apocalyptic number.
It is an amenable number.
3180872045 is a deficient number, since it is larger than the sum of its proper divisors (1030057027).
3180872045 is a wasteful number, since it uses less digits than its factorization.
3180872045 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1193632.
The product of its (nonzero) digits is 53760, while the sum is 38.
The square root of 3180872045 is about 56399.2202517021. The cubic root of 3180872045 is about 1470.6705634563.
The spelling of 3180872045 in words is "three billion, one hundred eighty million, eight hundred seventy-two thousand, forty-five".
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