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550745105 = 513925701
BaseRepresentation
bin100000110100111…
…011010000010001
31102101022202020212
4200310323100101
52111442320410
6130352213505
716435153601
oct4064732021
91371282225
10550745105
11262976a49
1213453a295
138a1416a1
1453204c01
153353db05
hex20d3b411

550745105 has 12 divisors (see below), whose sum is σ = 665799732. Its totient is φ = 437349600.

The previous prime is 550745093. The next prime is 550745137. The reversal of 550745105 is 501547055.

It can be written as a sum of positive squares in 2 ways, for example, as 341769169 + 208975936 = 18487^2 + 14456^2 .

It is a de Polignac number, because none of the positive numbers 2k-550745105 is a prime.

It is a super-2 number, since 2×5507451052 = 606640341362922050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93755 + ... + 99455.

It is an arithmetic number, because the mean of its divisors is an integer number (55483311).

Almost surely, 2550745105 is an apocalyptic number.

It is an amenable number.

550745105 is a deficient number, since it is larger than the sum of its proper divisors (115054627).

550745105 is an equidigital number, since it uses as much as digits as its factorization.

550745105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5984 (or 5845 counting only the distinct ones).

The product of its (nonzero) digits is 17500, while the sum is 32.

The square root of 550745105 is about 23467.9591145033. The cubic root of 550745105 is about 819.6910917538.

The spelling of 550745105 in words is "five hundred fifty million, seven hundred forty-five thousand, one hundred five".

Divisors: 1 5 139 695 5701 19321 28505 96605 792439 3962195 110149021 550745105