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54423820 = 22511247381
BaseRepresentation
bin1100111110011…
…1000100001100
310210102000110001
43033213010030
5102413030240
65222254044
71230411013
oct317470414
9123360401
1054423820
11287a2470
1216287324
13b376b59
147329a7a
154ba089a
hex33e710c

54423820 has 24 divisors (see below), whose sum is σ = 124680528. Its totient is φ = 19790400.

The previous prime is 54423793. The next prime is 54423821. The reversal of 54423820 is 2832445.

54423820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (54423821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123471 + ... + 123910.

It is an arithmetic number, because the mean of its divisors is an integer number (5195022).

Almost surely, 254423820 is an apocalyptic number.

It is an amenable number.

54423820 is an abundant number, since it is smaller than the sum of its proper divisors (70256708).

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

54423820 is a wasteful number, since it uses less digits than its factorization.

54423820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247401 (or 247399 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 54423820 is about 7377.2501652038. The cubic root of 54423820 is about 378.9625905530.

It can be divided in two parts, 5 and 4423820, that added together give a triangular number (4423825 = T2974).

The spelling of 54423820 in words is "fifty-four million, four hundred twenty-three thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 247381 494762 989524 1236905 2473810 2721191 4947620 5442382 10884764 13605955 27211910 54423820