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87182016 = 2631672719
BaseRepresentation
bin1010011001001…
…00101011000000
320002001022020120
411030210223000
5134304311031
612352340240
72106014655
oct514445300
9202038216
1087182016
1145237159
1225244680
13150a63bc
14b815c2c
1579c1a96
hex5324ac0

87182016 has 56 divisors (see below), whose sum is σ = 232135680. Its totient is φ = 28876032.

The previous prime is 87182009. The next prime is 87182021. The reversal of 87182016 is 61028178.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30705 + ... + 33423.

It is an arithmetic number, because the mean of its divisors is an integer number (4145280).

Almost surely, 287182016 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 87182016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116067840).

87182016 is an abundant number, since it is smaller than the sum of its proper divisors (144953664).

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

87182016 is a wasteful number, since it uses less digits than its factorization.

87182016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2901 (or 2891 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 87182016 is about 9337.1310368871. The cubic root of 87182016 is about 443.4135590143.

The spelling of 87182016 in words is "eighty-seven million, one hundred eighty-two thousand, sixteen".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 167 192 334 501 668 1002 1336 2004 2672 2719 4008 5344 5438 8016 8157 10688 10876 16032 16314 21752 32064 32628 43504 65256 87008 130512 174016 261024 454073 522048 908146 1362219 1816292 2724438 3632584 5448876 7265168 10897752 14530336 21795504 29060672 43591008 87182016