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87020337 = 3376711701
BaseRepresentation
bin1010010111111…
…01001100110001
320001202002110110
411023331030301
5134234122322
612345051533
72104442415
oct513751461
9201662413
1087020337
1145136738
1225186ba9
131504a931
14b7b2d45
15798dc0c
hex52fd331

87020337 has 16 divisors (see below), whose sum is σ = 120951872. Its totient is φ = 55598400.

The previous prime is 87020333. The next prime is 87020357. The reversal of 87020337 is 73302078.

It is not a de Polignac number, because 87020337 - 22 = 87020333 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87020333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1587 + ... + 13287.

It is an arithmetic number, because the mean of its divisors is an integer number (7559492).

Almost surely, 287020337 is an apocalyptic number.

It is an amenable number.

87020337 is a deficient number, since it is larger than the sum of its proper divisors (33931535).

87020337 is a wasteful number, since it uses less digits than its factorization.

87020337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11808.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 87020337 is about 9328.4691670177. The cubic root of 87020337 is about 443.1392859988.

The spelling of 87020337 in words is "eighty-seven million, twenty thousand, three hundred thirty-seven".

Divisors: 1 3 37 67 111 201 2479 7437 11701 35103 432937 783967 1298811 2351901 29006779 87020337