Base | Representation |
---|---|
bin | 1000011110010… |
… | …00011010011101 |
3 | 11221202000020101 |
4 | 10033020122131 |
5 | 121143403420 |
6 | 11015221101 |
7 | 1522063105 |
oct | 417103235 |
9 | 157660211 |
10 | 71075485 |
11 | 37136078 |
12 | 1b977791 |
13 | 11957200 |
14 | 9622205 |
15 | 638e60a |
hex | 43c869d |
71075485 has 36 divisors (see below), whose sum is σ = 97891092. Its totient is φ = 49510656.
The previous prime is 71075443. The next prime is 71075507. The reversal of 71075485 is 58457017.
It can be written as a sum of positive squares in 6 ways, for example, as 24029604 + 47045881 = 4902^2 + 6859^2 .
It is not a de Polignac number, because 71075485 - 29 = 71074973 is a prime.
It is a congruent number.
It is an unprimeable number.
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 35 ways as a sum of consecutive naturals, for example, 304929 + ... + 305161.
It is an arithmetic number, because the mean of its divisors is an integer number (2719197).
Almost surely, 271075485 is an apocalyptic number.
It is an amenable number.
71075485 is a deficient number, since it is larger than the sum of its proper divisors (26815607).
71075485 is a wasteful number, since it uses less digits than its factorization.
71075485 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 302 (or 270 counting only the distinct ones).
The product of its (nonzero) digits is 39200, while the sum is 37.
The square root of 71075485 is about 8430.6277939428. The cubic root of 71075485 is about 414.2284692717.
The spelling of 71075485 in words is "seventy-one million, seventy-five thousand, four hundred eighty-five".
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