Base | Representation |
---|---|
bin | 1010001111010110… |
… | …0110101000111001 |
3 | 21002120020100211000 |
4 | 2203311212220321 |
5 | 21112134104410 |
6 | 1132430555213 |
7 | 125054613501 |
oct | 24365465071 |
9 | 7076210730 |
10 | 2748738105 |
11 | 1190655693 |
12 | 648668b09 |
13 | 34a61c669 |
14 | 1c10bca01 |
15 | 1114b0dc0 |
hex | a3d66a39 |
2748738105 has 32 divisors (see below), whose sum is σ = 4891547520. Its totient is φ = 1464523200.
The previous prime is 2748738077. The next prime is 2748738107. The reversal of 2748738105 is 5018378472.
It is not a de Polignac number, because 2748738105 - 210 = 2748737081 is a prime.
It is a super-2 number, since 2×27487381052 = 15111122339757982050, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is not an unprimeable number, because it can be changed into a prime (2748738107) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 132199 + ... + 151571.
It is an arithmetic number, because the mean of its divisors is an integer number (152860860).
Almost surely, 22748738105 is an apocalyptic number.
It is an amenable number.
2748738105 is a deficient number, since it is larger than the sum of its proper divisors (2142809415).
2748738105 is a wasteful number, since it uses less digits than its factorization.
2748738105 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20438 (or 20432 counting only the distinct ones).
The product of its (nonzero) digits is 376320, while the sum is 45.
The square root of 2748738105 is about 52428.4093312013. The cubic root of 2748738105 is about 1400.8053368188.
The spelling of 2748738105 in words is "two billion, seven hundred forty-eight million, seven hundred thirty-eight thousand, one hundred five".
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