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550161128 = 23116251831
BaseRepresentation
bin100000110010101…
…100101011101000
31102100020002012002
4200302230223220
52111320124003
6130331510132
716430202206
oct4062545350
91370202162
10550161128
11262608220
121342b8348
1389c9893a
14530d2076
1533475a88
hex20cacae8

550161128 has 16 divisors (see below), whose sum is σ = 1125329760. Its totient is φ = 250073200.

The previous prime is 550161109. The next prime is 550161133. The reversal of 550161128 is 821161055.

It is a self number, because there is not a number n which added to its sum of digits gives 550161128.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3125828 + ... + 3126003.

It is an arithmetic number, because the mean of its divisors is an integer number (70333110).

Almost surely, 2550161128 is an apocalyptic number.

It is an amenable number.

550161128 is an abundant number, since it is smaller than the sum of its proper divisors (575168632).

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

550161128 is a wasteful number, since it uses less digits than its factorization.

550161128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6251848 (or 6251844 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 29.

The square root of 550161128 is about 23455.5138080580. The cubic root of 550161128 is about 819.4012722419.

The spelling of 550161128 in words is "five hundred fifty million, one hundred sixty-one thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 11 22 44 88 6251831 12503662 25007324 50014648 68770141 137540282 275080564 550161128