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550223031 = 3473902291
BaseRepresentation
bin100000110010111…
…011110010110111
31102100100020002210
4200302323302313
52111324114111
6130333104503
716430550531
oct4062736267
91370306083
10550223031
1126264a786
12134328133
1389cbab77
145310a851
15334890a6
hex20cbbcb7

550223031 has 8 divisors (see below), whose sum is σ = 749240064. Its totient is φ = 359010680.

The previous prime is 550223029. The next prime is 550223039. The reversal of 550223031 is 130322055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 550223031 - 21 = 550223029 is a prime.

It is a super-2 number, since 2×5502230312 = 605490767685653922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 550222989 and 550223007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550223039) 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 7 ways as a sum of consecutive naturals, for example, 1951005 + ... + 1951286.

It is an arithmetic number, because the mean of its divisors is an integer number (93655008).

Almost surely, 2550223031 is an apocalyptic number.

550223031 is a deficient number, since it is larger than the sum of its proper divisors (199017033).

550223031 is a wasteful number, since it uses less digits than its factorization.

550223031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3902341.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 550223031 is about 23456.8333540570. The cubic root of 550223031 is about 819.4320035386.

Adding to 550223031 its reverse (130322055), we get a palindrome (680545086).

The spelling of 550223031 in words is "five hundred fifty million, two hundred twenty-three thousand, thirty-one".

Divisors: 1 3 47 141 3902291 11706873 183407677 550223031