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87204806 = 2133354031
BaseRepresentation
bin1010011001010…
…10001111000110
320002002110111122
411030222033012
5134311023211
612353033542
72106141263
oct514521706
9202073448
1087204806
1145252297
12252558b2
13150b38a0
14b82026a
1579c86db
hex532a3c6

87204806 has 8 divisors (see below), whose sum is σ = 140869344. Its totient is φ = 40248360.

The previous prime is 87204797. The next prime is 87204809. The reversal of 87204806 is 60840278.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87204809) 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 3 ways as a sum of consecutive naturals, for example, 1676990 + ... + 1677041.

It is an arithmetic number, because the mean of its divisors is an integer number (17608668).

Almost surely, 287204806 is an apocalyptic number.

87204806 is a deficient number, since it is larger than the sum of its proper divisors (53664538).

87204806 is a wasteful number, since it uses less digits than its factorization.

87204806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3354046.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 87204806 is about 9338.3513534242. The cubic root of 87204806 is about 443.4521928024.

The spelling of 87204806 in words is "eighty-seven million, two hundred four thousand, eight hundred six".

Divisors: 1 2 13 26 3354031 6708062 43602403 87204806