Base | Representation |
---|---|
bin | 1000100100010… |
… | …11110100000001 |
3 | 12000020200010012 |
4 | 10102023310001 |
5 | 121400011331 |
6 | 11044314305 |
7 | 1531635362 |
oct | 422136401 |
9 | 160220105 |
10 | 71875841 |
11 | 37632424 |
12 | 200a2995 |
13 | 11b775ab |
14 | 978db69 |
15 | 649b82b |
hex | 448bd01 |
71875841 has 4 divisors (see below), whose sum is σ = 75658800. Its totient is φ = 68092884.
The previous prime is 71875823. The next prime is 71875861. The reversal of 71875841 is 14857817.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14857817 = 13 ⋅1142909.
It is not a de Polignac number, because 71875841 - 226 = 4766977 is a prime.
It is a super-2 number, since 2×718758412 = 10332273038914562, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (71875861) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1891451 + ... + 1891488.
It is an arithmetic number, because the mean of its divisors is an integer number (18914700).
Almost surely, 271875841 is an apocalyptic number.
It is an amenable number.
71875841 is a deficient number, since it is larger than the sum of its proper divisors (3782959).
71875841 is a wasteful number, since it uses less digits than its factorization.
71875841 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3782958.
The product of its digits is 62720, while the sum is 41.
The square root of 71875841 is about 8477.9620782355. The cubic root of 71875841 is about 415.7774963503. Note that the first 3 decimals are identical.
The spelling of 71875841 in words is "seventy-one million, eight hundred seventy-five thousand, eight hundred forty-one".
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