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87490546 = 211131791709
BaseRepresentation
bin1010011011011…
…11111111110010
320002121222110121
411031233333302
5134344144141
612403120454
72111441323
oct515577762
9202558417
1087490546
1145427a40
122537312a
1315183970
14b89644a
157a331d1
hex536fff2

87490546 has 32 divisors (see below), whose sum is σ = 155131200. Its totient is φ = 36482880.

The previous prime is 87490541. The next prime is 87490553. The reversal of 87490546 is 64509478.

It is not an unprimeable number, because it can be changed into a prime (87490541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50340 + ... + 52048.

It is an arithmetic number, because the mean of its divisors is an integer number (4847850).

Almost surely, 287490546 is an apocalyptic number.

87490546 is a deficient number, since it is larger than the sum of its proper divisors (67640654).

87490546 is a wasteful number, since it uses less digits than its factorization.

87490546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 87490546 is about 9353.6381157280. The cubic root of 87490546 is about 443.9360112584.

The spelling of 87490546 in words is "eighty-seven million, four hundred ninety thousand, five hundred forty-six".

Divisors: 1 2 11 13 22 26 143 179 286 358 1709 1969 2327 3418 3938 4654 18799 22217 25597 37598 44434 51194 244387 305911 488774 611822 3365021 3976843 6730042 7953686 43745273 87490546