Base | Representation |
---|---|
bin | 100101010110011010… |
… | …1000001110010010111 |
3 | 21200000220101001002102 |
4 | 1022230311001302113 |
5 | 2303232000242211 |
6 | 100503021032315 |
7 | 5536440123620 |
oct | 1125465016227 |
9 | 250026331072 |
10 | 80208993431 |
11 | 3101a981a26 |
12 | 136659b569b |
13 | 774351a778 |
14 | 3c4c81ca47 |
15 | 2146a02a3b |
hex | 12acd41c97 |
80208993431 has 8 divisors (see below), whose sum is σ = 92060845344. Its totient is φ = 68455497600.
The previous prime is 80208993409. The next prime is 80208993503. The reversal of 80208993431 is 13439980208.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 80208993431 - 210 = 80208992407 is a prime.
It is a super-2 number, since 2×802089934312 (a number of 23 digits) contains 22 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 (80208993401) 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, 24587270 + ... + 24590531.
It is an arithmetic number, because the mean of its divisors is an integer number (11507605668).
Almost surely, 280208993431 is an apocalyptic number.
80208993431 is a deficient number, since it is larger than the sum of its proper divisors (11851851913).
80208993431 is a wasteful number, since it uses less digits than its factorization.
80208993431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 49178041.
The product of its (nonzero) digits is 373248, while the sum is 47.
The spelling of 80208993431 in words is "eighty billion, two hundred eight million, nine hundred ninety-three thousand, four hundred thirty-one".
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