Base | Representation |
---|---|
bin | 101000100101001000… |
… | …1000000110010101101 |
3 | 22022221022021220210112 |
4 | 1101022101000302231 |
5 | 2411433200211342 |
6 | 104011202345405 |
7 | 6203353665110 |
oct | 1211221006255 |
9 | 268838256715 |
10 | 87145319597 |
11 | 33a5a296496 |
12 | 14a8095b265 |
13 | 82aa58b48b |
14 | 4309b22577 |
15 | 2400940682 |
hex | 144a440cad |
87145319597 has 16 divisors (see below), whose sum is σ = 104027639040. Its totient is φ = 71377671552.
The previous prime is 87145319461. The next prime is 87145319603. The reversal of 87145319597 is 79591354178.
It is not a de Polignac number, because 87145319597 - 210 = 87145318573 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87145319197) 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, 104072 + ... + 430257.
It is an arithmetic number, because the mean of its divisors is an integer number (6501727440).
Almost surely, 287145319597 is an apocalyptic number.
It is an amenable number.
87145319597 is a deficient number, since it is larger than the sum of its proper divisors (16882319443).
87145319597 is a wasteful number, since it uses less digits than its factorization.
87145319597 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 535372.
The product of its digits is 9525600, while the sum is 59.
The spelling of 87145319597 in words is "eighty-seven billion, one hundred forty-five million, three hundred nineteen thousand, five hundred ninety-seven".
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