Base | Representation |
---|---|
bin | 101000100010111010… |
… | …1111010010010111110 |
3 | 22022202010122111012121 |
4 | 1101011311322102332 |
5 | 2411310200344423 |
6 | 103555551553154 |
7 | 6201463122454 |
oct | 1210565722276 |
9 | 268663574177 |
10 | 87071106238 |
11 | 33a21407936 |
12 | 14a5bb2b7ba |
13 | 82980a5c4c |
14 | 42ddd249d4 |
15 | 23e918145d |
hex | 1445d7a4be |
87071106238 has 32 divisors (see below), whose sum is σ = 142201463040. Its totient is φ = 39847515840.
The previous prime is 87071106139. The next prime is 87071106251. The reversal of 87071106238 is 83260117078.
It is a junction number, because it is equal to n+sod(n) for n = 87071106194 and 87071106203.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110820 + ... + 431767.
It is an arithmetic number, because the mean of its divisors is an integer number (4443795720).
Almost surely, 287071106238 is an apocalyptic number.
87071106238 is a deficient number, since it is larger than the sum of its proper divisors (55130356802).
87071106238 is a wasteful number, since it uses less digits than its factorization.
87071106238 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 542752.
The product of its (nonzero) digits is 112896, while the sum is 43.
The spelling of 87071106238 in words is "eighty-seven billion, seventy-one million, one hundred six thousand, two hundred thirty-eight".
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