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55250280808 = 238977598709
BaseRepresentation
bin110011011101001011…
…000110000101101000
312021121111011001220121
4303131023012011220
51401123032441213
641214233133024
73664103431612
oct633513060550
9167544131817
1055250280808
11214823857a8
12a85b25a174
13529670ba68
142961b41db2
15168578888d
hexcdd2c6168

55250280808 has 16 divisors (see below), whose sum is σ = 104758258500. Its totient is φ = 27314745216.

The previous prime is 55250280803. The next prime is 55250280847. The reversal of 55250280808 is 80808205255.

It can be written as a sum of positive squares in 2 ways, for example, as 52825506244 + 2424774564 = 229838^2 + 49242^2 .

It is not an unprimeable number, because it can be changed into a prime (55250280803) 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 3 ways as a sum of consecutive naturals, for example, 38798643 + ... + 38800066.

Almost surely, 255250280808 is an apocalyptic number.

It is an amenable number.

55250280808 is a deficient number, since it is larger than the sum of its proper divisors (49507977692).

55250280808 is a wasteful number, since it uses less digits than its factorization.

55250280808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77598804 (or 77598800 counting only the distinct ones).

The product of its (nonzero) digits is 256000, while the sum is 43.

The spelling of 55250280808 in words is "fifty-five billion, two hundred fifty million, two hundred eighty thousand, eight hundred eight".

Divisors: 1 2 4 8 89 178 356 712 77598709 155197418 310394836 620789672 6906285101 13812570202 27625140404 55250280808