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87382613386 = 2230918922177
BaseRepresentation
bin101000101100001101…
…0001101110110001010
322100112211210200200101
41101120122031312022
52412424422112021
6104050520400014
76212264646535
oct1213032156612
9270484720611
1087382613386
1134071230862
1214b2831600a
1383177a25c3
14432d451a1c
1524166b4a91
hex145868dd8a

87382613386 has 8 divisors (see below), whose sum is σ = 131130693540. Its totient is φ = 43672382208.

The previous prime is 87382613377. The next prime is 87382613431. The reversal of 87382613386 is 68331628378.

It can be written as a sum of positive squares in 2 ways, for example, as 82933056361 + 4449557025 = 287981^2 + 66705^2 .

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

It is a super-2 number, since 2×873826133862 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9456471 + ... + 9465706.

Almost surely, 287382613386 is an apocalyptic number.

87382613386 is a deficient number, since it is larger than the sum of its proper divisors (43748080154).

87382613386 is a wasteful number, since it uses less digits than its factorization.

87382613386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18924488.

The product of its digits is 6967296, while the sum is 55.

The spelling of 87382613386 in words is "eighty-seven billion, three hundred eighty-two million, six hundred thirteen thousand, three hundred eighty-six".

Divisors: 1 2 2309 4618 18922177 37844354 43691306693 87382613386