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55200308 = 2213800077
BaseRepresentation
bin1101001010010…
…0101000110100
310211212110120212
43102210220310
5103112402213
65251044552
71240123562
oct322445064
9124773525
1055200308
1129182899
12165a0758
13b589407
14748ca32
154ca59a8
hex34a4a34

55200308 has 6 divisors (see below), whose sum is σ = 96600546. Its totient is φ = 27600152.

The previous prime is 55200307. The next prime is 55200319. The reversal of 55200308 is 80300255.

It can be written as a sum of positive squares in only one way, i.e., 52678564 + 2521744 = 7258^2 + 1588^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55200307) 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 as a sum of consecutive naturals, namely, 6900035 + ... + 6900042.

It is an arithmetic number, because the mean of its divisors is an integer number (16100091).

Almost surely, 255200308 is an apocalyptic number.

It is an amenable number.

55200308 is a deficient number, since it is larger than the sum of its proper divisors (41400238).

55200308 is a wasteful number, since it uses less digits than its factorization.

55200308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13800081 (or 13800079 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 55200308 is about 7429.6909760770. The cubic root of 55200308 is about 380.7563605601.

The spelling of 55200308 in words is "fifty-five million, two hundred thousand, three hundred eight".

Divisors: 1 2 4 13800077 27600154 55200308