Base | Representation |
---|---|
bin | 101000101101101000… |
… | …0001011001101011101 |
3 | 22100200011120001222020 |
4 | 1101123100023031131 |
5 | 2413024130002142 |
6 | 104055343010353 |
7 | 6213414253062 |
oct | 1213320131535 |
9 | 270604501866 |
10 | 87430312797 |
11 | 34096150063 |
12 | 14b402999b9 |
13 | 83246337c9 |
14 | 433590ac69 |
15 | 241a987cec |
hex | 145b40b35d |
87430312797 has 8 divisors (see below), whose sum is σ = 116575485600. Its totient is φ = 58286007600.
The previous prime is 87430312793. The next prime is 87430312813. The reversal of 87430312797 is 79721303478.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 87430312797 - 22 = 87430312793 is a prime.
It is a super-5 number, since 5×874303127975 (a number of 56 digits) contains 55555 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87430312793) 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, 73954 + ... + 424652.
It is an arithmetic number, because the mean of its divisors is an integer number (14571935700).
Almost surely, 287430312797 is an apocalyptic number.
It is an amenable number.
87430312797 is a deficient number, since it is larger than the sum of its proper divisors (29145172803).
87430312797 is a wasteful number, since it uses less digits than its factorization.
87430312797 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 433803.
The product of its (nonzero) digits is 1778112, while the sum is 51.
The spelling of 87430312797 in words is "eighty-seven billion, four hundred thirty million, three hundred twelve thousand, seven hundred ninety-seven".
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