Base | Representation |
---|---|
bin | 1000100101001… |
… | …01011000000000 |
3 | 12000102222202002 |
4 | 10102211120000 |
5 | 121411334134 |
6 | 11050443132 |
7 | 1532552546 |
oct | 422453000 |
9 | 160388662 |
10 | 71980544 |
11 | 376a4059 |
12 | 201334a8 |
13 | 11bb314c |
14 | 97b9d96 |
15 | 64bc87e |
hex | 44a5600 |
71980544 has 20 divisors (see below), whose sum is σ = 143821524. Its totient is φ = 35990016.
The previous prime is 71980529. The next prime is 71980561. The reversal of 71980544 is 44508917.
It is a junction number, because it is equal to n+sod(n) for n = 71980498 and 71980507.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69782 + ... + 70805.
Almost surely, 271980544 is an apocalyptic number.
It is an amenable number.
71980544 is a deficient number, since it is larger than the sum of its proper divisors (71840980).
71980544 is an equidigital number, since it uses as much as digits as its factorization.
71980544 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 140605 (or 140589 counting only the distinct ones).
The product of its (nonzero) digits is 40320, while the sum is 38.
The square root of 71980544 is about 8484.1348409841. The cubic root of 71980544 is about 415.9792889097.
The spelling of 71980544 in words is "seventy-one million, nine hundred eighty thousand, five hundred forty-four".
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