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550887841 = 744792
BaseRepresentation
bin100000110101011…
…110000110100001
31102101121000001101
4200311132012201
52112011402331
6130355234401
716436320000
oct4065360641
91371530041
10550887841
11262a64209
121345a8a01
138a19164a
1453240c37
153356b061
hex20d5e1a1

550887841 has 15 divisors (see below), whose sum is σ = 644008721. Its totient is φ = 471203796.

The previous prime is 550887829. The next prime is 550887847. The reversal of 550887841 is 148788055.

The square root of 550887841 is 23471.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 550887841 - 211 = 550885793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 550887791 and 550887800.

It is not an unprimeable number, because it can be changed into a prime (550887847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1149840 + ... + 1150318.

Almost surely, 2550887841 is an apocalyptic number.

550887841 is the 23471-st square number.

550887841 is the 11736-th centered octagonal number.

It is an amenable number.

550887841 is a deficient number, since it is larger than the sum of its proper divisors (93120880).

550887841 is an frugal number, since it uses more digits than its factorization.

550887841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 46.

The cubic root of 550887841 is about 819.7618984485.

The spelling of 550887841 in words is "five hundred fifty million, eight hundred eighty-seven thousand, eight hundred forty-one".

Divisors: 1 7 49 343 479 2401 3353 23471 164297 229441 1150079 1606087 11242609 78698263 550887841