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87010663 = 591474757
BaseRepresentation
bin1010010111110…
…10110101100111
320001201121012011
411023322311213
5134233320123
612344535051
72104402255
oct513726547
9201647164
1087010663
114512a443
1225181487
13150463cc
14b7ad5d5
15798ae0d
hex52fad67

87010663 has 4 divisors (see below), whose sum is σ = 88485480. Its totient is φ = 85535848.

The previous prime is 87010631. The next prime is 87010681. The reversal of 87010663 is 36601078.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87010663 - 25 = 87010631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87010603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 737320 + ... + 737437.

It is an arithmetic number, because the mean of its divisors is an integer number (22121370).

Almost surely, 287010663 is an apocalyptic number.

87010663 is a deficient number, since it is larger than the sum of its proper divisors (1474817).

87010663 is a wasteful number, since it uses less digits than its factorization.

87010663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474816.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 87010663 is about 9327.9506323737. The cubic root of 87010663 is about 443.1228642117.

The spelling of 87010663 in words is "eighty-seven million, ten thousand, six hundred sixty-three".

Divisors: 1 59 1474757 87010663