Base | Representation |
---|---|
bin | 101001000100101… |
… | …0000110111101101 |
3 | 10120001020210021000 |
4 | 1102021100313231 |
5 | 10310302110414 |
6 | 344430430513 |
7 | 46103111334 |
oct | 12211206755 |
9 | 3501223230 |
10 | 1378160109 |
11 | 647a320a7 |
12 | 325662439 |
13 | 18c6a2a71 |
14 | d1068d1b |
15 | 80ecdb09 |
hex | 52250ded |
1378160109 has 16 divisors (see below), whose sum is σ = 2043368640. Its totient is φ = 918030960.
The previous prime is 1378160093. The next prime is 1378160123. The reversal of 1378160109 is 9010618731.
It is not a de Polignac number, because 1378160109 - 24 = 1378160093 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1378160009) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14494 + ... + 54464.
It is an arithmetic number, because the mean of its divisors is an integer number (127710540).
Almost surely, 21378160109 is an apocalyptic number.
It is an amenable number.
1378160109 is a deficient number, since it is larger than the sum of its proper divisors (665208531).
1378160109 is a wasteful number, since it uses less digits than its factorization.
1378160109 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 41257 (or 41251 counting only the distinct ones).
The product of its (nonzero) digits is 9072, while the sum is 36.
The square root of 1378160109 is about 37123.5788818912. The cubic root of 1378160109 is about 1112.8412746531.
The spelling of 1378160109 in words is "one billion, three hundred seventy-eight million, one hundred sixty thousand, one hundred nine".
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