Base | Representation |
---|---|
bin | 1001100011111… |
… | …11011011000101 |
3 | 12120221021111211 |
4 | 10301333123011 |
5 | 131013314301 |
6 | 11543131421 |
7 | 1662543121 |
oct | 461773305 |
9 | 176837454 |
10 | 80213701 |
11 | 41307817 |
12 | 22a43b71 |
13 | 13806739 |
14 | a920581 |
15 | 7097051 |
hex | 4c7f6c5 |
80213701 has 8 divisors (see below), whose sum is σ = 85010904. Its totient is φ = 75425280.
The previous prime is 80213657. The next prime is 80213711. The reversal of 80213701 is 10731208.
It can be written as a sum of positive squares in 4 ways, for example, as 12068676 + 68145025 = 3474^2 + 8255^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 80213701 - 213 = 80205509 is a prime.
It is a super-3 number, since 3×802137013 (a number of 25 digits) contains 333 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80213711) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31641 + ... + 34081.
It is an arithmetic number, because the mean of its divisors is an integer number (10626363).
Almost surely, 280213701 is an apocalyptic number.
It is an amenable number.
80213701 is a deficient number, since it is larger than the sum of its proper divisors (4797203).
80213701 is a wasteful number, since it uses less digits than its factorization.
80213701 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4391.
The product of its (nonzero) digits is 336, while the sum is 22.
The square root of 80213701 is about 8956.2101918166. The cubic root of 80213701 is about 431.2702675905.
Adding to 80213701 its reverse (10731208), we get a palindrome (90944909).
The spelling of 80213701 in words is "eighty million, two hundred thirteen thousand, seven hundred one".
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