Base | Representation |
---|---|
bin | 101000101110111011… |
… | …0111110010101100110 |
3 | 22100210012211112211120 |
4 | 1101131312332111212 |
5 | 2413121323204433 |
6 | 104103544114410 |
7 | 6214455025125 |
oct | 1213566762546 |
9 | 270705745746 |
10 | 87474038118 |
11 | 341088a5595 |
12 | 14b52a65a06 |
13 | 8330702b8c |
14 | 433b64dabc |
15 | 241e7237b3 |
hex | 145ddbe566 |
87474038118 has 64 divisors (see below), whose sum is σ = 193487823360. Its totient is φ = 26239191552.
The previous prime is 87474038063. The next prime is 87474038123. The reversal of 87474038118 is 81183047478.
It is a Harshad number since it is a multiple of its sum of digits (51).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161121 + ... + 448227.
It is an arithmetic number, because the mean of its divisors is an integer number (3023247240).
Almost surely, 287474038118 is an apocalyptic number.
87474038118 is an abundant number, since it is smaller than the sum of its proper divisors (106013785242).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87474038118 is a wasteful number, since it uses less digits than its factorization.
87474038118 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 287261.
The product of its (nonzero) digits is 1204224, while the sum is 51.
The spelling of 87474038118 in words is "eighty-seven billion, four hundred seventy-four million, thirty-eight thousand, one hundred eighteen".
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