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87166342 = 2181389619
BaseRepresentation
bin1010011001000…
…00110110000110
320002000111202001
411030200312012
5134303310332
612352135514
72105621164
oct514406606
9202014661
1087166342
11452263aa
122523759a
131509c223
14b810234
1579bc0e7
hex5320d86

87166342 has 16 divisors (see below), whose sum is σ = 132022800. Its totient is φ = 43161120.

The previous prime is 87166301. The next prime is 87166349. The reversal of 87166342 is 24366178.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87166349) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 140509 + ... + 141127.

It is an arithmetic number, because the mean of its divisors is an integer number (8251425).

Almost surely, 287166342 is an apocalyptic number.

87166342 is a deficient number, since it is larger than the sum of its proper divisors (44856458).

87166342 is a wasteful number, since it uses less digits than its factorization.

87166342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191.

The product of its digits is 48384, while the sum is 37.

The square root of 87166342 is about 9336.2916621108. The cubic root of 87166342 is about 443.3869844179.

The spelling of 87166342 in words is "eighty-seven million, one hundred sixty-six thousand, three hundred forty-two".

Divisors: 1 2 181 362 389 619 778 1238 70409 112039 140818 224078 240791 481582 43583171 87166342