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550730845 = 5722247881
BaseRepresentation
bin100000110100110…
…111110001011101
31102101022000200201
4200310313301131
52111441341340
6130352023501
716435064200
oct4064676135
91371260621
10550730845
11262967265
12134531b91
138a138052
14531dd937
153353979a
hex20d37c5d

550730845 has 12 divisors (see below), whose sum is σ = 768775644. Its totient is φ = 377643840.

The previous prime is 550730833. The next prime is 550730849. The reversal of 550730845 is 548037055.

It can be written as a sum of positive squares in 2 ways, for example, as 325910809 + 224820036 = 18053^2 + 14994^2 .

It is not a de Polignac number, because 550730845 - 221 = 548633693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550730849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1123696 + ... + 1124185.

It is an arithmetic number, because the mean of its divisors is an integer number (64064637).

Almost surely, 2550730845 is an apocalyptic number.

It is an amenable number.

550730845 is a deficient number, since it is larger than the sum of its proper divisors (218044799).

550730845 is a wasteful number, since it uses less digits than its factorization.

550730845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2247900 (or 2247893 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 550730845 is about 23467.6552940425. The cubic root of 550730845 is about 819.6840171587.

The spelling of 550730845 in words is "five hundred fifty million, seven hundred thirty thousand, eight hundred forty-five".

Divisors: 1 5 7 35 49 245 2247881 11239405 15735167 78675835 110146169 550730845