Base | Representation |
---|---|
bin | 1000111111111… |
… | …00000100111001 |
3 | 12021000212000110 |
4 | 10133330010321 |
5 | 123310401101 |
6 | 11253454533 |
7 | 1604403252 |
oct | 437740471 |
9 | 167025013 |
10 | 75481401 |
11 | 39675326 |
12 | 21341449 |
13 | 1283a768 |
14 | a04bb29 |
15 | 695ecd6 |
hex | 47fc139 |
75481401 has 8 divisors (see below), whose sum is σ = 101532960. Its totient is φ = 49875392.
The previous prime is 75481397. The next prime is 75481421. The reversal of 75481401 is 10418457.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 75481401 - 22 = 75481397 is a prime.
It is not an unprimeable number, because it can be changed into a prime (75481421) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110991 + ... + 111668.
It is an arithmetic number, because the mean of its divisors is an integer number (12691620).
Almost surely, 275481401 is an apocalyptic number.
It is an amenable number.
75481401 is a deficient number, since it is larger than the sum of its proper divisors (26051559).
75481401 is a wasteful number, since it uses less digits than its factorization.
75481401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 222775.
The product of its (nonzero) digits is 4480, while the sum is 30.
The square root of 75481401 is about 8688.0032803861. The cubic root of 75481401 is about 422.6166964042.
Adding to 75481401 its reverse (10418457), we get a palindrome (85899858).
The spelling of 75481401 in words is "seventy-five million, four hundred eighty-one thousand, four hundred one".
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