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87498684 = 223371329307
BaseRepresentation
bin1010011011100…
…01111110111100
320002122101122000
411031301332330
5134344424214
612403222300
72111504130
oct515617674
9202571560
1087498684
1145433069
1225377990
1315187590
14b8993c0
157a35809
hex5371fbc

87498684 has 192 divisors, whose sum is σ = 289766400. Its totient is φ = 22208256.

The previous prime is 87498661. The next prime is 87498689. The reversal of 87498684 is 48689478.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 87498684.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87498689) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 284859 + ... + 285165.

It is an arithmetic number, because the mean of its divisors is an integer number (1509200).

Almost surely, 287498684 is an apocalyptic number.

87498684 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87498684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144883200).

87498684 is an abundant number, since it is smaller than the sum of its proper divisors (202267716).

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

87498684 is a wasteful number, since it uses less digits than its factorization.

87498684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 361 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 87498684 is about 9354.0731235115. The cubic root of 87498684 is about 443.9497751808.

The spelling of 87498684 in words is "eighty-seven million, four hundred ninety-eight thousand, six hundred eighty-four".