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87324832 = 257974019
BaseRepresentation
bin1010011010001…
…11100010100000
320002022120011001
411031013202200
5134323343312
612355401344
72110151230
oct515074240
9202276131
1087324832
1145324491
12252b3254
13151263ca
14b851cc0
1579ee057
hex53478a0

87324832 has 48 divisors (see below), whose sum is σ = 198555840. Its totient is φ = 37029888.

The previous prime is 87324821. The next prime is 87324871. The reversal of 87324832 is 23842378.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 87324791 and 87324800.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19719 + ... + 23737.

It is an arithmetic number, because the mean of its divisors is an integer number (4136580).

Almost surely, 287324832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87324832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99277920).

87324832 is an abundant number, since it is smaller than the sum of its proper divisors (111231008).

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

87324832 is a wasteful number, since it uses less digits than its factorization.

87324832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4133 (or 4125 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 87324832 is about 9344.7756527377. The cubic root of 87324832 is about 443.6555508303.

It can be divided in two parts, 873 and 24832, that multiplied together give a square (21678336 = 46562).

The spelling of 87324832 in words is "eighty-seven million, three hundred twenty-four thousand, eight hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 97 112 194 224 388 679 776 1358 1552 2716 3104 4019 5432 8038 10864 16076 21728 28133 32152 56266 64304 112532 128608 225064 389843 450128 779686 900256 1559372 2728901 3118744 5457802 6237488 10915604 12474976 21831208 43662416 87324832