Base | Representation |
---|---|
bin | 1010011011001… |
… | …10110010001000 |
3 | 20002120001200220 |
4 | 11031212302020 |
5 | 134341442213 |
6 | 12402230040 |
7 | 2111223312 |
oct | 515466210 |
9 | 202501626 |
10 | 87452808 |
11 | 45401653 |
12 | 25355320 |
13 | 1516c731 |
14 | b8867b2 |
15 | 7a26e23 |
hex | 5366c88 |
87452808 has 32 divisors (see below), whose sum is σ = 228139200. Its totient is φ = 27883328.
The previous prime is 87452779. The next prime is 87452821. The reversal of 87452808 is 80825478.
It is a self number, because there is not a number n which added to its sum of digits gives 87452808.
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, 78663 + ... + 79766.
It is an arithmetic number, because the mean of its divisors is an integer number (7129350).
Almost surely, 287452808 is an apocalyptic number.
It is an amenable number.
87452808 is an abundant number, since it is smaller than the sum of its proper divisors (140686392).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87452808 is a wasteful number, since it uses less digits than its factorization.
87452808 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 158461 (or 158457 counting only the distinct ones).
The product of its (nonzero) digits is 143360, while the sum is 42.
The square root of 87452808 is about 9351.6206082155. The cubic root of 87452808 is about 443.8721732503.
The spelling of 87452808 in words is "eighty-seven million, four hundred fifty-two thousand, eight hundred eight".
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