Base | Representation |
---|---|
bin | 1010011000101… |
… | …11111111000010 |
3 | 20001221122221220 |
4 | 11030113333002 |
5 | 134301130200 |
6 | 12351255510 |
7 | 2105410320 |
oct | 514277702 |
9 | 201848856 |
10 | 87130050 |
11 | 45201107 |
12 | 2521a596 |
13 | 15088857 |
14 | b800d10 |
15 | 79b14a0 |
hex | 5317fc2 |
87130050 has 48 divisors (see below), whose sum is σ = 246954432. Its totient is φ = 19915200.
The previous prime is 87130037. The next prime is 87130081. The reversal of 87130050 is 5003178.
It is a super-2 number, since 2×871300502 = 15183291226005000, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 87130050.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40441 + ... + 42540.
It is an arithmetic number, because the mean of its divisors is an integer number (5144884).
Almost surely, 287130050 is an apocalyptic number.
87130050 is an abundant number, since it is smaller than the sum of its proper divisors (159824382).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87130050 is a wasteful number, since it uses less digits than its factorization.
87130050 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 83003 (or 82998 counting only the distinct ones).
The product of its (nonzero) digits is 840, while the sum is 24.
The square root of 87130050 is about 9334.3478615273. The cubic root of 87130050 is about 443.3254406545.
The spelling of 87130050 in words is "eighty-seven million, one hundred thirty thousand, fifty".
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