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550355070 = 23518345169
BaseRepresentation
bin100000110011011…
…100000001111110
31102100120221020010
4200303130001332
52111342330240
6130340004050
716431640506
oct4063340176
91370527203
10550355070
1126272aa01
12134390626
138a035cb5
1453142a06
15334b3280
hex20cdc07e

550355070 has 16 divisors (see below), whose sum is σ = 1320852240. Its totient is φ = 146761344.

The previous prime is 550355051. The next prime is 550355077. The reversal of 550355070 is 70553055.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 18345169 = 550355070 / (5 + 5 + 0 + 3 + 5 + 5 + 0 + 7 + 0).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550355077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9172555 + ... + 9172614.

It is an arithmetic number, because the mean of its divisors is an integer number (82553265).

Almost surely, 2550355070 is an apocalyptic number.

550355070 is an abundant number, since it is smaller than the sum of its proper divisors (770497170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

550355070 is a wasteful number, since it uses less digits than its factorization.

550355070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18345179.

The product of its (nonzero) digits is 13125, while the sum is 30.

The square root of 550355070 is about 23459.6476955644. The cubic root of 550355070 is about 819.4975456446.

The spelling of 550355070 in words is "five hundred fifty million, three hundred fifty-five thousand, seventy".

Divisors: 1 2 3 5 6 10 15 30 18345169 36690338 55035507 91725845 110071014 183451690 275177535 550355070