Base | Representation |
---|---|
bin | 100110010000… |
… | …0000100100110 |
3 | 1101201212100020 |
4 | 1030200010212 |
5 | 20113214220 |
6 | 1553500010 |
7 | 332313243 |
oct | 114400446 |
9 | 41655306 |
10 | 20054310 |
11 | 10358111 |
12 | 6871606 |
13 | 4202073 |
14 | 29405ca |
15 | 1b62040 |
hex | 1320126 |
20054310 has 64 divisors (see below), whose sum is σ = 51217920. Its totient is φ = 5011200.
The previous prime is 20054273. The next prime is 20054317. The reversal of 20054310 is 1345002.
It is a super-2 number, since 2×200543102 = 804350699152200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 20054310.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20054317) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 85954 + ... + 86186.
It is an arithmetic number, because the mean of its divisors is an integer number (800280).
Almost surely, 220054310 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20054310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25608960).
20054310 is an abundant number, since it is smaller than the sum of its proper divisors (31163610).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20054310 is a wasteful number, since it uses less digits than its factorization.
20054310 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 413.
The product of its (nonzero) digits is 120, while the sum is 15.
The square root of 20054310 is about 4478.2038810219. The cubic root of 20054310 is about 271.6872396295.
Adding to 20054310 its reverse (1345002), we get a palindrome (21399312).
The spelling of 20054310 in words is "twenty million, fifty-four thousand, three hundred ten".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.079 sec. • engine limits •