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550115154 = 23230561953
BaseRepresentation
bin100000110010100…
…001011101010010
31102100010202010100
4200302201131102
52111312141104
6130330513230
716426621161
oct4062413522
91370122110
10550115154
11262586726
12134295816
1389c80a34
14530bd3d8
1533467139
hex20ca1752

550115154 has 12 divisors (see below), whose sum is σ = 1191916206. Its totient is φ = 183371712.

The previous prime is 550115131. The next prime is 550115161. The reversal of 550115154 is 451511055.

550115154 is a `hidden beast` number, since 5 + 501 + 1 + 5 + 154 = 666.

It can be written as a sum of positive squares in only one way, i.e., 525463929 + 24651225 = 22923^2 + 4965^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15280959 + ... + 15280994.

Almost surely, 2550115154 is an apocalyptic number.

550115154 is an abundant number, since it is smaller than the sum of its proper divisors (641801052).

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

550115154 is a wasteful number, since it uses less digits than its factorization.

550115154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30561961 (or 30561958 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The square root of 550115154 is about 23454.5337621535. The cubic root of 550115154 is about 819.3784472902.

The spelling of 550115154 in words is "five hundred fifty million, one hundred fifteen thousand, one hundred fifty-four".

Divisors: 1 2 3 6 9 18 30561953 61123906 91685859 183371718 275057577 550115154