Base | Representation |
---|---|
bin | 100101010100000000… |
… | …0111101000000010001 |
3 | 21122211021102000021110 |
4 | 1022220000331000101 |
5 | 2303100311432424 |
6 | 100451014043533 |
7 | 5534436514113 |
oct | 1125000750021 |
9 | 248737360243 |
10 | 80128233489 |
11 | 30a89331877 |
12 | 136429495a9 |
13 | 772c882515 |
14 | 3c41bd93b3 |
15 | 213e89dc29 |
hex | 12a803d011 |
80128233489 has 8 divisors (see below), whose sum is σ = 107050047552. Its totient is φ = 53312620880.
The previous prime is 80128233421. The next prime is 80128233509. The reversal of 80128233489 is 98433282108.
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 80128233489 - 232 = 75833266193 is a prime.
It is a super-2 number, since 2×801282334892 (a number of 23 digits) contains 22 as substring.
It is not an unprimeable number, because it can be changed into a prime (80128232489) 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, 26548602 + ... + 26551619.
It is an arithmetic number, because the mean of its divisors is an integer number (13381255944).
Almost surely, 280128233489 is an apocalyptic number.
It is an amenable number.
80128233489 is a deficient number, since it is larger than the sum of its proper divisors (26921814063).
80128233489 is a wasteful number, since it uses less digits than its factorization.
80128233489 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 53100727.
The product of its (nonzero) digits is 663552, while the sum is 48.
The spelling of 80128233489 in words is "eighty billion, one hundred twenty-eight million, two hundred thirty-three thousand, four hundred eighty-nine".
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