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87804016 = 2419367787
BaseRepresentation
bin1010011101111…
…00100001110000
320010012220110121
411032330201300
5134434212031
612413540024
72114215246
oct516744160
9203186417
1087804016
1145621503
12254a4614
1315263551
14b938796
157a96011
hex53bc870

87804016 has 40 divisors (see below), whose sum is σ = 179790080. Its totient is φ = 41425344.

The previous prime is 87804011. The next prime is 87804023. The reversal of 87804016 is 61040878.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87804011) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 111175 + ... + 111961.

It is an arithmetic number, because the mean of its divisors is an integer number (4494752).

Almost surely, 287804016 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 87804016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89895040).

87804016 is an abundant number, since it is smaller than the sum of its proper divisors (91986064).

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

87804016 is a wasteful number, since it uses less digits than its factorization.

87804016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181 (or 1175 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 34.

The square root of 87804016 is about 9370.3797148248. The cubic root of 87804016 is about 444.4655722919.

The spelling of 87804016 in words is "eighty-seven million, eight hundred four thousand, sixteen".

Divisors: 1 2 4 8 16 19 38 76 152 304 367 734 787 1468 1574 2936 3148 5872 6296 6973 12592 13946 14953 27892 29906 55784 59812 111568 119624 239248 288829 577658 1155316 2310632 4621264 5487751 10975502 21951004 43902008 87804016