Base | Representation |
---|---|
bin | 10010010101011110000001… |
… | …100110101010100011010000 |
3 | 101120112010102011120211211110 |
4 | 102111132001212222203100 |
5 | 41032202044424112044 |
6 | 443301331215013320 |
7 | 22662026653056645 |
oct | 2225360146524320 |
9 | 346463364524743 |
10 | 80640185379024 |
11 | 237703463a7787 |
12 | 9064736b0a240 |
13 | 35cc44c0aa2bb |
14 | 15cb011c9ddcc |
15 | 94c9826aa6b9 |
hex | 4957819aa8d0 |
80640185379024 has 40 divisors (see below), whose sum is σ = 208321620625440. Its totient is φ = 26879914473088.
The previous prime is 80640185379023. The next prime is 80640185379043. The reversal of 80640185379024 is 42097358104608.
It is a happy number.
It is a super-2 number, since 2×806401853790242 (a number of 29 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80640185379023) 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, 4428262 + ... + 13449530.
It is an arithmetic number, because the mean of its divisors is an integer number (5208040515636).
It is a 1-persistent number, because it is pandigital, but 2⋅80640185379024 = 161280370758048 is not.
Almost surely, 280640185379024 is an apocalyptic number.
It is an amenable number.
80640185379024 is an abundant number, since it is smaller than the sum of its proper divisors (127681435246416).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80640185379024 is a wasteful number, since it uses less digits than its factorization.
80640185379024 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9207507 (or 9207501 counting only the distinct ones).
The product of its (nonzero) digits is 11612160, while the sum is 57.
The spelling of 80640185379024 in words is "eighty trillion, six hundred forty billion, one hundred eighty-five million, three hundred seventy-nine thousand, twenty-four".
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