Base | Representation |
---|---|
bin | 100101010100011110… |
… | …1101001000100011100 |
3 | 21122212101100021111112 |
4 | 1022220331221010130 |
5 | 2303113400030440 |
6 | 100452343041152 |
7 | 5535021654323 |
oct | 1125075510434 |
9 | 248771307445 |
10 | 80144142620 |
11 | 30a97308613 |
12 | 136481401b8 |
13 | 7732c628c9 |
14 | 3c43d7b0ba |
15 | 2140e92965 |
hex | 12a8f6911c |
80144142620 has 48 divisors (see below), whose sum is σ = 176635529280. Its totient is φ = 30486567936.
The previous prime is 80144142587. The next prime is 80144142671. The reversal of 80144142620 is 2624144108.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423965 + ... + 583124.
It is an arithmetic number, because the mean of its divisors is an integer number (3679906860).
Almost surely, 280144142620 is an apocalyptic number.
It is an amenable number.
80144142620 is an abundant number, since it is smaller than the sum of its proper divisors (96491386660).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
80144142620 is a wasteful number, since it uses less digits than its factorization.
80144142620 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1007294 (or 1007292 counting only the distinct ones).
The product of its (nonzero) digits is 12288, while the sum is 32.
Adding to 80144142620 its reverse (2624144108), we get a palindrome (82768286728).
The spelling of 80144142620 in words is "eighty billion, one hundred forty-four million, one hundred forty-two thousand, six hundred twenty".
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