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550500028 = 221326340253
BaseRepresentation
bin100000110011111…
…111011010111100
31102100212022001221
4200303333122330
52111412000103
6130343043124
716433113231
oct4063773274
91370768057
10550500028
11262819901
121344404a4
138a086c80
145317d788
15334e11bd
hex20cff6bc

550500028 has 24 divisors (see below), whose sum is σ = 1041451488. Its totient is φ = 253104576.

The previous prime is 550500017. The next prime is 550500037. The reversal of 550500028 is 820005055.

It is a junction number, because it is equal to n+sod(n) for n = 550499975 and 550500011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6451 + ... + 33802.

It is an arithmetic number, because the mean of its divisors is an integer number (43393812).

Almost surely, 2550500028 is an apocalyptic number.

It is an amenable number.

550500028 is a deficient number, since it is larger than the sum of its proper divisors (490951460).

550500028 is a wasteful number, since it uses less digits than its factorization.

550500028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40533 (or 40531 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 550500028 is about 23462.7370099910. The cubic root of 550500028 is about 819.5694884706.

The spelling of 550500028 in words is "five hundred fifty million, five hundred thousand, twenty-eight".

Divisors: 1 2 4 13 26 52 263 526 1052 3419 6838 13676 40253 80506 161012 523289 1046578 2093156 10586539 21173078 42346156 137625007 275250014 550500028