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87851066 = 2107410519
BaseRepresentation
bin1010011110010…
…00000000111010
320010022022000012
411033020000322
5134442213231
612414541522
72114502362
oct517100072
9203268005
1087851066
1145653896
12255078a2
131527baa4
14b94b9a2
157aa4e2b
hex53c803a

87851066 has 8 divisors (see below), whose sum is σ = 133008480. Its totient is φ = 43514908.

The previous prime is 87851039. The next prime is 87851111. The reversal of 87851066 is 66015878.

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

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 in 3 ways as a sum of consecutive naturals, for example, 205046 + ... + 205473.

It is an arithmetic number, because the mean of its divisors is an integer number (16626060).

Almost surely, 287851066 is an apocalyptic number.

87851066 is a deficient number, since it is larger than the sum of its proper divisors (45157414).

87851066 is a wasteful number, since it uses less digits than its factorization.

87851066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410628.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 87851066 is about 9372.8899492099. The cubic root of 87851066 is about 444.5449474427.

The spelling of 87851066 in words is "eighty-seven million, eight hundred fifty-one thousand, sixty-six".

Divisors: 1 2 107 214 410519 821038 43925533 87851066