Base | Representation |
---|---|
bin | 1000011111101… |
… | …01011111100011 |
3 | 11222002101112010 |
4 | 10033311133203 |
5 | 121220311011 |
6 | 11023204003 |
7 | 1523462325 |
oct | 417653743 |
9 | 158071463 |
10 | 71260131 |
11 | 37251878 |
12 | 1ba46603 |
13 | 119c0277 |
14 | 966d615 |
15 | 63c91a6 |
hex | 43f57e3 |
71260131 has 12 divisors (see below), whose sum is σ = 97087112. Its totient is φ = 46491648.
The previous prime is 71260129. The next prime is 71260153. The reversal of 71260131 is 13106217.
It is not a de Polignac number, because 71260131 - 21 = 71260129 is a prime.
It is a super-2 number, since 2×712601312 = 10156012540274322, which contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 71260098 and 71260107.
It is not an unprimeable number, because it can be changed into a prime (71260031) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1251 + ... + 12003.
Almost surely, 271260131 is an apocalyptic number.
71260131 is a deficient number, since it is larger than the sum of its proper divisors (25826981).
71260131 is a wasteful number, since it uses less digits than its factorization.
71260131 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10850 (or 10803 counting only the distinct ones).
The product of its (nonzero) digits is 252, while the sum is 21.
The square root of 71260131 is about 8441.5715953844. The cubic root of 71260131 is about 414.5868651927.
Adding to 71260131 its reverse (13106217), we get a palindrome (84366348).
The spelling of 71260131 in words is "seventy-one million, two hundred sixty thousand, one hundred thirty-one".
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