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54479120 = 245680989
BaseRepresentation
bin1100111111010…
…0100100010000
310210111211022012
43033310210100
5102421312440
65223402052
71231031153
oct317644420
9123454265
1054479120
112882aa73
12162b3328
13b396087
147341c9a
154bb1e65
hex33f4910

54479120 has 20 divisors (see below), whose sum is σ = 126664140. Its totient is φ = 21791616.

The previous prime is 54479093. The next prime is 54479129. The reversal of 54479120 is 2197445.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8456464 + 46022656 = 2908^2 + 6784^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (54479129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340415 + ... + 340574.

It is an arithmetic number, because the mean of its divisors is an integer number (6333207).

Almost surely, 254479120 is an apocalyptic number.

It is an amenable number.

54479120 is an abundant number, since it is smaller than the sum of its proper divisors (72185020).

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

54479120 is a wasteful number, since it uses less digits than its factorization.

54479120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681002 (or 680996 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 54479120 is about 7380.9972225980. The cubic root of 54479120 is about 379.0909016323.

The spelling of 54479120 in words is "fifty-four million, four hundred seventy-nine thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 680989 1361978 2723956 3404945 5447912 6809890 10895824 13619780 27239560 54479120