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87241382 = 2176414003
BaseRepresentation
bin1010011001100…
…11001010100110
320002011022200022
411030303022212
5134313211012
612353515142
72106353024
oct514631246
9202138608
1087241382
1145277818
1225272ab2
13150c7427
14b82d714
1579d4472
hex53332a6

87241382 has 16 divisors (see below), whose sum is σ = 138810672. Its totient is φ = 40980480.

The previous prime is 87241381. The next prime is 87241397. The reversal of 87241382 is 28314278.

It is a super-2 number, since 2×872413822 = 15222117466539848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87241381) 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 7 ways as a sum of consecutive naturals, for example, 19793 + ... + 23795.

It is an arithmetic number, because the mean of its divisors is an integer number (8675667).

Almost surely, 287241382 is an apocalyptic number.

87241382 is a deficient number, since it is larger than the sum of its proper divisors (51569290).

87241382 is a wasteful number, since it uses less digits than its factorization.

87241382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663.

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

The square root of 87241382 is about 9340.3095237792. The cubic root of 87241382 is about 443.5141826591.

The spelling of 87241382 in words is "eighty-seven million, two hundred forty-one thousand, three hundred eighty-two".

Divisors: 1 2 17 34 641 1282 4003 8006 10897 21794 68051 136102 2565923 5131846 43620691 87241382