Base | Representation |
---|---|
bin | 1001001000010000110000… |
… | …00100111011001000010101 |
3 | 2122002011021220202211102202 |
4 | 10210020120010323020111 |
5 | 10112402231224213321 |
6 | 110410210454214245 |
7 | 4141243136512523 |
oct | 444103004731025 |
9 | 78064256684382 |
10 | 20075081085461 |
11 | 643a880a09896 |
12 | 2302828054385 |
13 | b280c230a41c |
14 | 4d58d3a01313 |
15 | 24c2eb5b870b |
hex | 12421813b215 |
20075081085461 has 8 divisors (see below), whose sum is σ = 20103203296800. Its totient is φ = 20046971063952.
The previous prime is 20075081085439. The next prime is 20075081085467. The reversal of 20075081085461 is 16458018057002.
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 20075081085461 - 226 = 20075013976597 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20075081085467) 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, 251090 + ... + 6341388.
It is an arithmetic number, because the mean of its divisors is an integer number (2512900412100).
Almost surely, 220075081085461 is an apocalyptic number.
It is an amenable number.
20075081085461 is a deficient number, since it is larger than the sum of its proper divisors (28122211339).
20075081085461 is an equidigital number, since it uses as much as digits as its factorization.
20075081085461 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6094915.
The product of its (nonzero) digits is 537600, while the sum is 47.
The spelling of 20075081085461 in words is "twenty trillion, seventy-five billion, eighty-one million, eighty-five thousand, four hundred sixty-one".
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