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87886468 = 2221971617
BaseRepresentation
bin1010011110100…
…00101010000100
320010101002120101
411033100222010
5134444331333
612415413444
72115010525
oct517205204
9203332511
1087886468
114567844a
1225524284
1315291c37
14b95a84c
157ab067d
hex53d0a84

87886468 has 6 divisors (see below), whose sum is σ = 153801326. Its totient is φ = 43943232.

The previous prime is 87886451. The next prime is 87886471. The reversal of 87886468 is 86468878.

It can be written as a sum of positive squares in only one way, i.e., 69755904 + 18130564 = 8352^2 + 4258^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10985805 + ... + 10985812.

Almost surely, 287886468 is an apocalyptic number.

It is an amenable number.

87886468 is a deficient number, since it is larger than the sum of its proper divisors (65914858).

87886468 is a wasteful number, since it uses less digits than its factorization.

87886468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21971621 (or 21971619 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 55.

The square root of 87886468 is about 9374.7782907117. The cubic root of 87886468 is about 444.6046532889.

The spelling of 87886468 in words is "eighty-seven million, eight hundred eighty-six thousand, four hundred sixty-eight".

Divisors: 1 2 4 21971617 43943234 87886468