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87852438 = 234542299
BaseRepresentation
bin1010011110010…
…00010110010110
320010022100220000
411033020112112
5134442234223
612414552130
72114506362
oct517102626
9203270800
1087852438
1145654923
1225508646
131527c5bb
14b94c2a2
157aa5543
hex53c8596

87852438 has 20 divisors (see below), whose sum is σ = 196854900. Its totient is φ = 29284092.

The previous prime is 87852421. The next prime is 87852451. The reversal of 87852438 is 83425878.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 87852393 and 87852402.

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 270988 + ... + 271311.

It is an arithmetic number, because the mean of its divisors is an integer number (9842745).

Almost surely, 287852438 is an apocalyptic number.

87852438 is an abundant number, since it is smaller than the sum of its proper divisors (109002462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87852438 is a wasteful number, since it uses less digits than its factorization.

87852438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542313 (or 542304 counting only the distinct ones).

The product of its digits is 430080, while the sum is 45.

The square root of 87852438 is about 9372.9631387305. The cubic root of 87852438 is about 444.5472616339.

The spelling of 87852438 in words is "eighty-seven million, eight hundred fifty-two thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 9 18 27 54 81 162 542299 1084598 1626897 3253794 4880691 9761382 14642073 29284146 43926219 87852438