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550104281 = 4211306661
BaseRepresentation
bin100000110010011…
…110110011011001
31102100010012012122
4200302132303121
52111311314111
6130330351025
716426544366
oct4062366331
91370105178
10550104281
11262579541
1213428b475
1389c78abc
14530b946d
1533463cdb
hex20c9ecd9

550104281 has 4 divisors (see below), whose sum is σ = 551411364. Its totient is φ = 548797200.

The previous prime is 550104263. The next prime is 550104287. The reversal of 550104281 is 182401055.

550104281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68740681 + 481363600 = 8291^2 + 21940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-550104281 is a prime.

It is a super-2 number, since 2×5501042812 = 605229439949053922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 550104281.

It is not an unprimeable number, because it can be changed into a prime (550104287) 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, 652910 + ... + 653751.

It is an arithmetic number, because the mean of its divisors is an integer number (137852841).

Almost surely, 2550104281 is an apocalyptic number.

It is an amenable number.

550104281 is a deficient number, since it is larger than the sum of its proper divisors (1307083).

550104281 is a wasteful number, since it uses less digits than its factorization.

550104281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307082.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 550104281 is about 23454.3019721330. The cubic root of 550104281 is about 819.3730489292.

The spelling of 550104281 in words is "five hundred fifty million, one hundred four thousand, two hundred eighty-one".

Divisors: 1 421 1306661 550104281