Base | Representation |
---|---|
bin | 101000100110010000… |
… | …1100011011010011100 |
3 | 22100000221120221211222 |
4 | 1101030201203122130 |
5 | 2412022400211030 |
6 | 104015034432512 |
7 | 6204324026135 |
oct | 1211441433234 |
9 | 270027527758 |
10 | 87183210140 |
11 | 33a79716194 |
12 | 14a91592738 |
13 | 82b5396b10 |
14 | 4310b86c8c |
15 | 2403e273e5 |
hex | 144c86369c |
87183210140 has 24 divisors (see below), whose sum is σ = 197168183520. Its totient is φ = 32190723648.
The previous prime is 87183210131. The next prime is 87183210151. The reversal of 87183210140 is 4101238178.
It is a self number, because there is not a number n which added to its sum of digits gives 87183210140.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167659760 + ... + 167660279.
It is an arithmetic number, because the mean of its divisors is an integer number (8215340980).
Almost surely, 287183210140 is an apocalyptic number.
It is an amenable number.
87183210140 is an abundant number, since it is smaller than the sum of its proper divisors (109984973380).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87183210140 is a wasteful number, since it uses less digits than its factorization.
87183210140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 335320061 (or 335320059 counting only the distinct ones).
The product of its (nonzero) digits is 10752, while the sum is 35.
The spelling of 87183210140 in words is "eighty-seven billion, one hundred eighty-three million, two hundred ten thousand, one hundred forty".
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