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20054524 = 227347311
BaseRepresentation
bin100110010000…
…0000111111100
31101201212122011
41030200013330
520113221044
61553501004
7332314000
oct114400774
941655564
1020054524
1110358296
126871764
1342021a9
142940700
151b62134
hex13201fc

20054524 has 48 divisors (see below), whose sum is σ = 41932800. Its totient is φ = 8384880.

The previous prime is 20054521. The next prime is 20054537. The reversal of 20054524 is 42545002.

It is a junction number, because it is equal to n+sod(n) for n = 20054495 and 20054504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20054521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64329 + ... + 64639.

It is an arithmetic number, because the mean of its divisors is an integer number (873600).

Almost surely, 220054524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20054524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20966400).

20054524 is an abundant number, since it is smaller than the sum of its proper divisors (21878276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20054524 is a wasteful number, since it uses less digits than its factorization.

20054524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383 (or 367 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 20054524 is about 4478.2277744661. The cubic root of 20054524 is about 271.6882060197.

Adding to 20054524 its reverse (42545002), we get a palindrome (62599526).

The spelling of 20054524 in words is "twenty million, fifty-four thousand, five hundred twenty-four".

Divisors: 1 2 4 7 14 28 47 49 94 98 188 196 311 329 343 622 658 686 1244 1316 1372 2177 2303 4354 4606 8708 9212 14617 15239 16121 29234 30478 32242 58468 60956 64484 102319 106673 204638 213346 409276 426692 716233 1432466 2864932 5013631 10027262 20054524