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552108987 = 3361335221
BaseRepresentation
bin100000111010001…
…000001110111011
31102110220001011000
4200322020032323
52112314441422
6130441340043
716452564123
oct4072101673
91373801130
10552108987
11263718721
12134a97623
138a4cb411
145347bc83
153370ccac
hex20e883bb

552108987 has 16 divisors (see below), whose sum is σ = 831350560. Its totient is φ = 362037600.

The previous prime is 552108971. The next prime is 552109007. The reversal of 552108987 is 789801255.

It is a happy number.

552108987 is a `hidden beast` number, since 552 + 1 + 0 + 8 + 98 + 7 = 666.

It is not a de Polignac number, because 552108987 - 24 = 552108971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (552108787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165964 + ... + 169257.

It is an arithmetic number, because the mean of its divisors is an integer number (51959410).

Almost surely, 2552108987 is an apocalyptic number.

552108987 is a deficient number, since it is larger than the sum of its proper divisors (279241573).

552108987 is a wasteful number, since it uses less digits than its factorization.

552108987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335291 (or 335285 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The square root of 552108987 is about 23496.9995318551. Note that the first 3 decimals coincide. The cubic root of 552108987 is about 820.3671699923.

The spelling of 552108987 in words is "five hundred fifty-two million, one hundred eight thousand, nine hundred eighty-seven".

Divisors: 1 3 9 27 61 183 549 1647 335221 1005663 3016989 9050967 20448481 61345443 184036329 552108987