Base | Representation |
---|---|
bin | 1001000011101… |
… | …11100100010000 |
3 | 12021222112212100 |
4 | 10201313210100 |
5 | 123423042331 |
6 | 11312400400 |
7 | 1611611034 |
oct | 441674420 |
9 | 167875770 |
10 | 75987216 |
11 | 39990358 |
12 | 21546100 |
13 | 12986a66 |
14 | a1401c4 |
15 | 6a0eae6 |
hex | 4877910 |
75987216 has 60 divisors (see below), whose sum is σ = 221914368. Its totient is φ = 24226752.
The previous prime is 75987209. The next prime is 75987217. The reversal of 75987216 is 61278957.
It is not an unprimeable number, because it can be changed into a prime (75987217) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8160 + ... + 14783.
Almost surely, 275987216 is an apocalyptic number.
It is an amenable number.
75987216 is an abundant number, since it is smaller than the sum of its proper divisors (145927152).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
75987216 is a wasteful number, since it uses less digits than its factorization.
75987216 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 22980 (or 22971 counting only the distinct ones).
The product of its digits is 211680, while the sum is 45.
The square root of 75987216 is about 8717.0646435598. The cubic root of 75987216 is about 423.5586067565.
The spelling of 75987216 in words is "seventy-five million, nine hundred eighty-seven thousand, two hundred sixteen".
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