Base | Representation |
---|---|
bin | 1010011110111… |
… | …10000000010100 |
3 | 20010110212120021 |
4 | 11033132000110 |
5 | 140003104030 |
6 | 12420514524 |
7 | 2115326110 |
oct | 517360024 |
9 | 203425507 |
10 | 87941140 |
11 | 45705531 |
12 | 2554ba44 |
13 | 152b0aa1 |
14 | b972740 |
15 | 7ac197a |
hex | 53de014 |
87941140 has 48 divisors (see below), whose sum is σ = 211680000. Its totient is φ = 30062592.
The previous prime is 87941123. The next prime is 87941143. The reversal of 87941140 is 4114978.
It is a junction number, because it is equal to n+sod(n) for n = 87941096 and 87941105.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87941143) 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, 62161 + ... + 63559.
It is an arithmetic number, because the mean of its divisors is an integer number (4410000).
Almost surely, 287941140 is an apocalyptic number.
It is an amenable number.
87941140 is an abundant number, since it is smaller than the sum of its proper divisors (123738860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87941140 is a wasteful number, since it uses less digits than its factorization.
87941140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1864 (or 1862 counting only the distinct ones).
The product of its (nonzero) digits is 8064, while the sum is 34.
The square root of 87941140 is about 9377.6937463323. The cubic root of 87941140 is about 444.6968267014.
The spelling of 87941140 in words is "eighty-seven million, nine hundred forty-one thousand, one hundred forty".
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