Base | Representation |
---|---|
bin | 100110111011… |
… | …0111110100000 |
3 | 1102101221122000 |
4 | 1031312332200 |
5 | 20211112042 |
6 | 2005244000 |
7 | 335325111 |
oct | 115667640 |
9 | 42357560 |
10 | 20410272 |
11 | 105805a3 |
12 | 6a03600 |
13 | 42c80ac |
14 | 29d4208 |
15 | 1bd274c |
hex | 1376fa0 |
20410272 has 48 divisors (see below), whose sum is σ = 59532480. Its totient is φ = 6803136.
The previous prime is 20410259. The next prime is 20410279. The reversal of 20410272 is 27201402.
It is a tau number, because it is divible by the number of its divisors (48).
It is a super-2 number, since 2×204102722 = 833158406227968, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (20410279) 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, 10948 + ... + 12675.
It is an arithmetic number, because the mean of its divisors is an integer number (1240260).
Almost surely, 220410272 is an apocalyptic number.
It is an amenable number.
20410272 is an abundant number, since it is smaller than the sum of its proper divisors (39122208).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20410272 is a wasteful number, since it uses less digits than its factorization.
20410272 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23642 (or 23628 counting only the distinct ones).
The product of its (nonzero) digits is 224, while the sum is 18.
The square root of 20410272 is about 4517.7729026590. The cubic root of 20410272 is about 273.2852952792.
Adding to 20410272 its reverse (27201402), we get a palindrome (47611674).
The spelling of 20410272 in words is "twenty million, four hundred ten thousand, two hundred seventy-two".
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