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54328220 = 22519142969
BaseRepresentation
bin1100111100111…
…1101110011100
310210020011022022
43033033232130
5102402000340
65220235312
71226532212
oct317175634
9123204268
1054328220
1128737661
121623bb38
13b34249b
147302cb2
154b823b5
hex33cfb9c

54328220 has 24 divisors (see below), whose sum is σ = 120094800. Its totient is φ = 20587392.

The previous prime is 54328217. The next prime is 54328229. The reversal of 54328220 is 2282345.

It is a self number, because there is not a number n which added to its sum of digits gives 54328220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54328229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71105 + ... + 71864.

It is an arithmetic number, because the mean of its divisors is an integer number (5003950).

Almost surely, 254328220 is an apocalyptic number.

It is an amenable number.

54328220 is an abundant number, since it is smaller than the sum of its proper divisors (65766580).

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

54328220 is a wasteful number, since it uses less digits than its factorization.

54328220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142997 (or 142995 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 54328220 is about 7370.7679382816. The cubic root of 54328220 is about 378.7405673202.

The spelling of 54328220 in words is "fifty-four million, three hundred twenty-eight thousand, two hundred twenty".

Divisors: 1 2 4 5 10 19 20 38 76 95 190 380 142969 285938 571876 714845 1429690 2716411 2859380 5432822 10865644 13582055 27164110 54328220