Base | Representation |
---|---|
bin | 101000101101101110… |
… | …1011000010001011001 |
3 | 22100200102001221002012 |
4 | 1101123131120101121 |
5 | 2413031021233134 |
6 | 104055545115305 |
7 | 6213455550410 |
oct | 1213335302131 |
9 | 270612057065 |
10 | 87433774169 |
11 | 340980a46a5 |
12 | 14b41488b35 |
13 | 8325276161 |
14 | 433616c477 |
15 | 241ae1d6ce |
hex | 145b758459 |
87433774169 has 8 divisors (see below), whose sum is σ = 100060641600. Its totient is φ = 74840988816.
The previous prime is 87433774151. The next prime is 87433774231. The reversal of 87433774169 is 96147733478.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 87433774169 - 228 = 87165338713 is a prime.
It is a super-2 number, since 2×874337741692 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (87433776169) 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, 8515019 + ... + 8525280.
It is an arithmetic number, because the mean of its divisors is an integer number (12507580200).
Almost surely, 287433774169 is an apocalyptic number.
It is an amenable number.
87433774169 is a deficient number, since it is larger than the sum of its proper divisors (12626867431).
87433774169 is a wasteful number, since it uses less digits than its factorization.
87433774169 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17041039.
The product of its digits is 21337344, while the sum is 59.
The spelling of 87433774169 in words is "eighty-seven billion, four hundred thirty-three million, seven hundred seventy-four thousand, one hundred sixty-nine".
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