Base | Representation |
---|---|
bin | 1000111101001… |
… | …00000101010100 |
3 | 12020100112121112 |
4 | 10132210011110 |
5 | 123212332410 |
6 | 11242034152 |
7 | 1601342414 |
oct | 436440524 |
9 | 166315545 |
10 | 75120980 |
11 | 39449560 |
12 | 211a8958 |
13 | 127426ac |
14 | 9d96644 |
15 | 68dd105 |
hex | 47a4154 |
75120980 has 24 divisors (see below), whose sum is σ = 172095840. Its totient is φ = 27316640.
The previous prime is 75120961. The next prime is 75121001. The reversal of 75120980 is 8902157.
It is a congruent number.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 170510 + ... + 170949.
It is an arithmetic number, because the mean of its divisors is an integer number (7170660).
Almost surely, 275120980 is an apocalyptic number.
It is an amenable number.
75120980 is an abundant number, since it is smaller than the sum of its proper divisors (96974860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
75120980 is a wasteful number, since it uses less digits than its factorization.
75120980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 341479 (or 341477 counting only the distinct ones).
The product of its (nonzero) digits is 5040, while the sum is 32.
The square root of 75120980 is about 8667.2360069402. The cubic root of 75120980 is about 421.9429630242.
The spelling of 75120980 in words is "seventy-five million, one hundred twenty thousand, nine hundred eighty".
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