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55200384 = 273247917
BaseRepresentation
bin1101001010010…
…0101010000000
310211212110200200
43102210222000
5103112403014
65251045200
71240124031
oct322445200
9124773620
1055200384
1129182958
12165a0800
13b589465
14748ca88
154ca5a09
hex34a4a80

55200384 has 48 divisors (see below), whose sum is σ = 158848170. Its totient is φ = 18399744.

The previous prime is 55200373. The next prime is 55200389. The reversal of 55200384 is 48300255.

It can be written as a sum of positive squares in only one way, i.e., 53582400 + 1617984 = 7320^2 + 1272^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (55200389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22807 + ... + 25110.

Almost surely, 255200384 is an apocalyptic number.

It is an amenable number.

55200384 is an abundant number, since it is smaller than the sum of its proper divisors (103647786).

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

55200384 is a wasteful number, since it uses less digits than its factorization.

55200384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47937 (or 47922 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 55200384 is about 7429.6960906890. The cubic root of 55200384 is about 380.7565353023.

The spelling of 55200384 in words is "fifty-five million, two hundred thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 288 384 576 1152 47917 95834 143751 191668 287502 383336 431253 575004 766672 862506 1150008 1533344 1725012 2300016 3066688 3450024 4600032 6133376 6900048 9200064 13800096 18400128 27600192 55200384