Base | Representation |
---|---|
bin | 100111111110… |
… | …1010010100010 |
3 | 1110102220021210 |
4 | 1033331102202 |
5 | 20331213133 |
6 | 2025130550 |
7 | 343106043 |
oct | 117752242 |
9 | 43386253 |
10 | 20960418 |
11 | 10916966 |
12 | 7029a56 |
13 | 445b61b |
14 | 2ad88ca |
15 | 1c90763 |
hex | 13fd4a2 |
20960418 has 8 divisors (see below), whose sum is σ = 41920848. Its totient is φ = 6986804.
The previous prime is 20960413. The next prime is 20960419. The reversal of 20960418 is 81406902.
It is a sphenic number, since it is the product of 3 distinct primes.
20960418 is an admirable number.
It is not an unprimeable number, because it can be changed into a prime (20960413) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1746696 + ... + 1746707.
It is an arithmetic number, because the mean of its divisors is an integer number (5240106).
Almost surely, 220960418 is an apocalyptic number.
20960418 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20960418 is a wasteful number, since it uses less digits than its factorization.
20960418 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3493408.
The product of its (nonzero) digits is 3456, while the sum is 30.
The square root of 20960418 is about 4578.2549077132. The cubic root of 20960418 is about 275.7189693527.
The spelling of 20960418 in words is "twenty million, nine hundred sixty thousand, four hundred eighteen".
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