Base | Representation |
---|---|
bin | 1000100100111… |
… | …01111011110100 |
3 | 12000101102221100 |
4 | 10102131323310 |
5 | 121404400233 |
6 | 11050050100 |
7 | 1532364651 |
oct | 422357364 |
9 | 160342840 |
10 | 71950068 |
11 | 37683173 |
12 | 20119930 |
13 | 11ba2308 |
14 | 97acc28 |
15 | 64b3813 |
hex | 449def4 |
71950068 has 36 divisors (see below), whose sum is σ = 182650468. Its totient is φ = 23880960.
The previous prime is 71950061. The next prime is 71950133. The reversal of 71950068 is 86005917.
It can be written as a sum of positive squares in 2 ways, for example, as 34715664 + 37234404 = 5892^2 + 6102^2 .
It is a tau number, because it is divible by the number of its divisors (36).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (71950061) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4530 + ... + 12822.
Almost surely, 271950068 is an apocalyptic number.
It is an amenable number.
71950068 is an abundant number, since it is smaller than the sum of its proper divisors (110700400).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
71950068 is a wasteful number, since it uses less digits than its factorization.
71950068 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8544 (or 8539 counting only the distinct ones).
The product of its (nonzero) digits is 15120, while the sum is 36.
The square root of 71950068 is about 8482.3385926288. The cubic root of 71950068 is about 415.9205731619.
The spelling of 71950068 in words is "seventy-one million, nine hundred fifty thousand, sixty-eight".
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