Base | Representation |
---|---|
bin | 1010101101110… |
… | …01000101011110 |
3 | 20021010201212202 |
4 | 11112321011132 |
5 | 141002341240 |
6 | 12530331502 |
7 | 2141012300 |
oct | 526710536 |
9 | 207121782 |
10 | 89887070 |
11 | 46814539 |
12 | 26129b92 |
13 | 15812720 |
14 | bd1b970 |
15 | 7d58315 |
hex | 55b915e |
89887070 has 96 divisors (see below), whose sum is σ = 206152128. Its totient is φ = 27965952.
The previous prime is 89887067. The next prime is 89887079. The reversal of 89887070 is 7078898.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (89887079) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 656042 + ... + 656178.
It is an arithmetic number, because the mean of its divisors is an integer number (2147418).
Almost surely, 289887070 is an apocalyptic number.
89887070 is an abundant number, since it is smaller than the sum of its proper divisors (116265058).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
89887070 is a wasteful number, since it uses less digits than its factorization.
89887070 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 274 (or 267 counting only the distinct ones).
The product of its (nonzero) digits is 225792, while the sum is 47.
The square root of 89887070 is about 9480.8791786416. The cubic root of 89887070 is about 447.9529573000.
The spelling of 89887070 in words is "eighty-nine million, eight hundred eighty-seven thousand, seventy".
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