Base | Representation |
---|---|
bin | 1000111011001… |
… | …11001011000001 |
3 | 12012212212101010 |
4 | 10131213023001 |
5 | 123131341424 |
6 | 11232431133 |
7 | 1566253140 |
oct | 435471301 |
9 | 165785333 |
10 | 74871489 |
11 | 39299070 |
12 | 210a84a9 |
13 | 12685c74 |
14 | 9d2d757 |
15 | 688e229 |
hex | 47672c1 |
74871489 has 16 divisors (see below), whose sum is σ = 124462080. Its totient is φ = 38894160.
The previous prime is 74871481. The next prime is 74871497. The reversal of 74871489 is 98417847.
It is an interprime number because it is at equal distance from previous prime (74871481) and next prime (74871497).
It is not a de Polignac number, because 74871489 - 23 = 74871481 is a prime.
It is not an unprimeable number, because it can be changed into a prime (74871481) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161829 + ... + 162290.
It is an arithmetic number, because the mean of its divisors is an integer number (7778880).
Almost surely, 274871489 is an apocalyptic number.
It is an amenable number.
74871489 is a deficient number, since it is larger than the sum of its proper divisors (49590591).
74871489 is a wasteful number, since it uses less digits than its factorization.
74871489 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 324140.
The product of its digits is 451584, while the sum is 48.
The square root of 74871489 is about 8652.8312707460. The cubic root of 74871489 is about 421.4753274453.
The spelling of 74871489 in words is "seventy-four million, eight hundred seventy-one thousand, four hundred eighty-nine".
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