Base | Representation |
---|---|
bin | 1001100010100… |
… | …10110011000101 |
3 | 12120120222210001 |
4 | 10301102303011 |
5 | 130441442132 |
6 | 11535201301 |
7 | 1661152201 |
oct | 461226305 |
9 | 176528701 |
10 | 80030917 |
11 | 411a245a |
12 | 22976231 |
13 | 13771495 |
14 | a8b3b01 |
15 | 705cce7 |
hex | 4c52cc5 |
80030917 has 8 divisors (see below), whose sum is σ = 85613976. Its totient is φ = 74545152.
The previous prime is 80030903. The next prime is 80030927. The reversal of 80030917 is 71903008.
It is a Cunningham number, because it is equal to 89462+1.
It can be written as a sum of positive squares in 4 ways, for example, as 35928036 + 44102881 = 5994^2 + 6641^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-80030917 is a prime.
It is a super-3 number, since 3×800309173 (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 (80030927) 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, 22618 + ... + 25915.
It is an arithmetic number, because the mean of its divisors is an integer number (10701747).
Almost surely, 280030917 is an apocalyptic number.
It is an amenable number.
80030917 is a deficient number, since it is larger than the sum of its proper divisors (5583059).
80030917 is a wasteful number, since it uses less digits than its factorization.
80030917 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 48647.
The product of its (nonzero) digits is 1512, while the sum is 28.
The square root of 80030917 is about 8946.0000558909. Note that the first 4 decimals coincide. The cubic root of 80030917 is about 430.9424380719.
The spelling of 80030917 in words is "eighty million, thirty thousand, nine hundred seventeen".
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