Base | Representation |
---|---|
bin | 11001111010111000… |
… | …001001000110000101 |
3 | 2122211121120122002220 |
4 | 121322320021012011 |
5 | 423444310411240 |
6 | 20441402122553 |
7 | 2003454333105 |
oct | 317270110605 |
9 | 78747518086 |
10 | 27831341445 |
11 | 10892080836 |
12 | 54887b0459 |
13 | 2816cb819b |
14 | 14c0409205 |
15 | acd54d5d0 |
hex | 67ae09185 |
27831341445 has 8 divisors (see below), whose sum is σ = 44530146336. Its totient is φ = 14843382096.
The previous prime is 27831341443. The next prime is 27831341477. The reversal of 27831341445 is 54414313872.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 27831341445 - 21 = 27831341443 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 27831341397 and 27831341406.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (27831341443) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 927711367 + ... + 927711396.
It is an arithmetic number, because the mean of its divisors is an integer number (5566268292).
Almost surely, 227831341445 is an apocalyptic number.
It is an amenable number.
27831341445 is a deficient number, since it is larger than the sum of its proper divisors (16698804891).
27831341445 is a wasteful number, since it uses less digits than its factorization.
27831341445 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1855422771.
The product of its digits is 322560, while the sum is 42.
The spelling of 27831341445 in words is "twenty-seven billion, eight hundred thirty-one million, three hundred forty-one thousand, four hundred forty-five".
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