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254221055 = 51114813121
BaseRepresentation
bin11110010011100…
…01101011111111
3122201100202201122
433021301223333
51010040033210
641120501155
76204562154
oct1711615377
9581322648
10254221055
11120557050
127117a7bb
134088ca7a
1425a9822b
15174b9b55
hexf271aff

254221055 has 16 divisors (see below), whose sum is σ = 333129888. Its totient is φ = 184704000.

The previous prime is 254221013. The next prime is 254221061. The reversal of 254221055 is 550122452.

It is not a de Polignac number, because 254221055 - 212 = 254216959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79895 + ... + 83015.

It is an arithmetic number, because the mean of its divisors is an integer number (20820618).

Almost surely, 2254221055 is an apocalyptic number.

254221055 is a deficient number, since it is larger than the sum of its proper divisors (78908833).

254221055 is a wasteful number, since it uses less digits than its factorization.

254221055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4618.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 254221055 is about 15944.3110544169. The cubic root of 254221055 is about 633.4862199385.

The spelling of 254221055 in words is "two hundred fifty-four million, two hundred twenty-one thousand, fifty-five".

Divisors: 1 5 11 55 1481 3121 7405 15605 16291 34331 81455 171655 4622201 23111005 50844211 254221055