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87630663 = 3291007249
BaseRepresentation
bin1010011100100…
…10001101000111
320002220002200010
411032102031013
5134413140123
612410121303
72112563661
oct516221507
9202802603
1087630663
114551323a
1225420233
1315202683
14b8d1531
157a5e993
hex5392347

87630663 has 8 divisors (see below), whose sum is σ = 120870000. Its totient is φ = 56405888.

The previous prime is 87630661. The next prime is 87630691. The reversal of 87630663 is 36603678.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87630663 - 21 = 87630661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87630661) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 503538 + ... + 503711.

It is an arithmetic number, because the mean of its divisors is an integer number (15108750).

Almost surely, 287630663 is an apocalyptic number.

87630663 is a deficient number, since it is larger than the sum of its proper divisors (33239337).

87630663 is a wasteful number, since it uses less digits than its factorization.

87630663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007281.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 87630663 is about 9361.1250926371. The cubic root of 87630663 is about 444.1728742042.

The spelling of 87630663 in words is "eighty-seven million, six hundred thirty thousand, six hundred sixty-three".

Divisors: 1 3 29 87 1007249 3021747 29210221 87630663