Base | Representation |
---|---|
bin | 1010011010100… |
… | …10111111010010 |
3 | 20002101221111000 |
4 | 11031102333102 |
5 | 134331343410 |
6 | 12400402430 |
7 | 2110435035 |
oct | 515227722 |
9 | 202357430 |
10 | 87371730 |
11 | 45356746 |
12 | 25316416 |
13 | 15141864 |
14 | b86501c |
15 | 7a0cdc0 |
hex | 5352fd2 |
87371730 has 32 divisors (see below), whose sum is σ = 232992000. Its totient is φ = 23299056.
The previous prime is 87371717. The next prime is 87371737. The reversal of 87371730 is 3717378.
It is a happy number.
It is not an unprimeable number, because it can be changed into a prime (87371737) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161530 + ... + 162069.
It is an arithmetic number, because the mean of its divisors is an integer number (7281000).
Almost surely, 287371730 is an apocalyptic number.
87371730 is an abundant number, since it is smaller than the sum of its proper divisors (145620270).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87371730 is a wasteful number, since it uses less digits than its factorization.
87371730 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 323615 (or 323609 counting only the distinct ones).
The product of its (nonzero) digits is 24696, while the sum is 36.
The square root of 87371730 is about 9347.2846324481. The cubic root of 87371730 is about 443.7349586914.
The spelling of 87371730 in words is "eighty-seven million, three hundred seventy-one thousand, seven hundred thirty".
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