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87672216 = 23331117839
BaseRepresentation
bin1010011100111…
…00010110011000
320002222012200010
411032130112120
5134421002331
612411041520
72113126062
oct516342630
9202865603
1087672216
1145541485
12254402a0
1315218568
14b902732
157a6be46
hex539c598

87672216 has 32 divisors (see below), whose sum is σ = 226252800. Its totient is φ = 28281120.

The previous prime is 87672199. The next prime is 87672217. The reversal of 87672216 is 61227678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87672217) 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, 58176 + ... + 59663.

It is an arithmetic number, because the mean of its divisors is an integer number (7070400).

Almost surely, 287672216 is an apocalyptic number.

It is an amenable number.

87672216 is an abundant number, since it is smaller than the sum of its proper divisors (138580584).

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

87672216 is a wasteful number, since it uses less digits than its factorization.

87672216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117879 (or 117875 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 87672216 is about 9363.3442743498. The cubic root of 87672216 is about 444.2430695684.

The spelling of 87672216 in words is "eighty-seven million, six hundred seventy-two thousand, two hundred sixteen".

Divisors: 1 2 3 4 6 8 12 24 31 62 93 124 186 248 372 744 117839 235678 353517 471356 707034 942712 1414068 2828136 3653009 7306018 10959027 14612036 21918054 29224072 43836108 87672216