Base | Representation |
---|---|
bin | 101000110100101… |
… | …1011000111000101 |
3 | 10112110112201210022 |
4 | 1101221123013011 |
5 | 10301133012240 |
6 | 343531504525 |
7 | 45642136130 |
oct | 12151330705 |
9 | 3473481708 |
10 | 1369813445 |
11 | 643251130 |
12 | 3228b8145 |
13 | 18aa3c900 |
14 | cdcd5217 |
15 | 803d09b5 |
hex | 51a5b1c5 |
1369813445 has 96 divisors (see below), whose sum is σ = 2283137280. Its totient is φ = 765573120.
The previous prime is 1369813429. The next prime is 1369813451. The reversal of 1369813445 is 5443189631.
It is not a de Polignac number, because 1369813445 - 24 = 1369813429 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1369813396 and 1369813405.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2407121 + ... + 2407689.
It is an arithmetic number, because the mean of its divisors is an integer number (23782680).
Almost surely, 21369813445 is an apocalyptic number.
It is an amenable number.
1369813445 is a deficient number, since it is larger than the sum of its proper divisors (913323835).
1369813445 is a wasteful number, since it uses less digits than its factorization.
1369813445 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 655 (or 642 counting only the distinct ones).
The product of its digits is 311040, while the sum is 44.
The square root of 1369813445 is about 37010.9908675788. The cubic root of 1369813445 is about 1110.5901266466.
The spelling of 1369813445 in words is "one billion, three hundred sixty-nine million, eight hundred thirteen thousand, four hundred forty-five".
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