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987084423 = 32133128779
BaseRepresentation
bin111010110101011…
…011011010000111
32112210101002021100
4322311123122013
54010143200143
6241540351143
733314036103
oct7265333207
92483332240
10987084423
11467202156
122366a54b3
13129667530
1495148903
155b9ce6d3
hex3ad5b687

987084423 has 36 divisors (see below), whose sum is σ = 1586774280. Its totient is φ = 587774880.

The previous prime is 987084359. The next prime is 987084431. The reversal of 987084423 is 324480789.

It is not a de Polignac number, because 987084423 - 26 = 987084359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987084443) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 108048 + ... + 116826.

Almost surely, 2987084423 is an apocalyptic number.

987084423 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

987084423 is a deficient number, since it is larger than the sum of its proper divisors (599689857).

987084423 is a wasteful number, since it uses less digits than its factorization.

987084423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8860 (or 8826 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 987084423 is about 31417.8997229286. The cubic root of 987084423 is about 995.6761388373.

The spelling of 987084423 in words is "nine hundred eighty-seven million, eighty-four thousand, four hundred twenty-three".

Divisors: 1 3 9 13 31 39 93 117 279 403 961 1209 2883 3627 8649 8779 12493 26337 37479 79011 112437 114127 272149 342381 816447 1027143 2449341 3537937 8436619 10613811 25309857 31841433 75929571 109676047 329028141 987084423