Base | Representation |
---|---|
bin | 100101100101101010… |
… | …1111100110000010101 |
3 | 21201100120200121211102 |
4 | 1023023111330300111 |
5 | 2310304030040203 |
6 | 101025505515445 |
7 | 5555224445435 |
oct | 1131325746025 |
9 | 251316617742 |
10 | 80720940053 |
11 | 31262959006 |
12 | 13789342b85 |
13 | 77c55c6470 |
14 | 3c9a8042c5 |
15 | 217692a888 |
hex | 12cb57cc15 |
80720940053 has 8 divisors (see below), whose sum is σ = 86962826496. Its totient is φ = 74483708400.
The previous prime is 80720940043. The next prime is 80720940059. The reversal of 80720940053 is 35004902708.
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 80720940053 - 26 = 80720939989 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 80720939989 and 80720940016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80720940059) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1127633 + ... + 1197078.
It is an arithmetic number, because the mean of its divisors is an integer number (10870353312).
Almost surely, 280720940053 is an apocalyptic number.
It is an amenable number.
80720940053 is a deficient number, since it is larger than the sum of its proper divisors (6241886443).
80720940053 is a wasteful number, since it uses less digits than its factorization.
80720940053 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2327395.
The product of its (nonzero) digits is 60480, while the sum is 38.
The spelling of 80720940053 in words is "eighty billion, seven hundred twenty million, nine hundred forty thousand, fifty-three".
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