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87424064 = 2671317883
BaseRepresentation
bin1010011010111…
…11110001000000
320002111121021022
411031133301000
5134340032224
612401445012
72111043440
oct515376100
9202447238
1087424064
1145391aa2
1225340768
131515c620
14b87a120
157a1d65e
hex535fc40

87424064 has 112 divisors (see below), whose sum is σ = 226332288. Its totient is φ = 32514048.

The previous prime is 87424033. The next prime is 87424091. The reversal of 87424064 is 46042478.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 98567 + ... + 99449.

It is an arithmetic number, because the mean of its divisors is an integer number (2020824).

Almost surely, 287424064 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 87424064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113166144).

87424064 is an abundant number, since it is smaller than the sum of its proper divisors (138908224).

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

87424064 is a wasteful number, since it uses less digits than its factorization.

87424064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 87424064 is about 9350.0836359896. The cubic root of 87424064 is about 443.8235372674.

The spelling of 87424064 in words is "eighty-seven million, four hundred twenty-four thousand, sixty-four".

Divisors: 1 2 4 7 8 13 14 16 17 26 28 32 34 52 56 64 68 91 104 112 119 136 182 208 221 224 238 272 364 416 442 448 476 544 728 832 883 884 952 1088 1456 1547 1766 1768 1904 2912 3094 3532 3536 3808 5824 6181 6188 7064 7072 7616 11479 12362 12376 14128 14144 15011 22958 24724 24752 28256 30022 45916 49448 49504 56512 60044 80353 91832 98896 99008 105077 120088 160706 183664 195143 197792 210154 240176 321412 367328 390286 395584 420308 480352 642824 734656 780572 840616 960704 1285648 1366001 1561144 1681232 2571296 2732002 3122288 3362464 5142592 5464004 6244576 6724928 10928008 12489152 21856016 43712032 87424064