Base | Representation |
---|---|
bin | 11000111111111010… |
… | …01100011011100101 |
3 | 1021122100001100001000 |
4 | 30133331030123211 |
5 | 204441241143120 |
6 | 10055431223513 |
7 | 653404635405 |
oct | 143775143345 |
9 | 37570040030 |
10 | 13421037285 |
11 | 5767909a57 |
12 | 2726817b99 |
13 | 135b69a8a6 |
14 | 914648805 |
15 | 5383bd990 |
hex | 31ff4c6e5 |
13421037285 has 32 divisors (see below), whose sum is σ = 24082634880. Its totient is φ = 7090982784.
The previous prime is 13421037283. The next prime is 13421037313. The reversal of 13421037285 is 58273012431.
13421037285 is a `hidden beast` number, since 1 + 342 + 1 + 0 + 37 + 285 = 666.
It is not a de Polignac number, because 13421037285 - 21 = 13421037283 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13421037283) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 450112 + ... + 479001.
It is an arithmetic number, because the mean of its divisors is an integer number (752582340).
Almost surely, 213421037285 is an apocalyptic number.
13421037285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13421037285 is a deficient number, since it is larger than the sum of its proper divisors (10661597595).
13421037285 is a wasteful number, since it uses less digits than its factorization.
13421037285 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 929234 (or 929228 counting only the distinct ones).
The product of its (nonzero) digits is 40320, while the sum is 36.
The spelling of 13421037285 in words is "thirteen billion, four hundred twenty-one million, thirty-seven thousand, two hundred eighty-five".
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