Search a number
-
+
87384080 = 24571767137
BaseRepresentation
bin1010011010101…
…10000000010000
320002102120102102
411031112000100
5134332242310
612400535532
72110516040
oct515260020
9202376372
1087384080
1145364a53
12253215a8
1315147374
14b869720
157a118a5
hex5356010

87384080 has 160 divisors (see below), whose sum is σ = 251341056. Its totient is φ = 27574272.

The previous prime is 87384053. The next prime is 87384103. The reversal of 87384080 is 8048378.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 637772 + ... + 637908.

Almost surely, 287384080 is an apocalyptic number.

87384080 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87384080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125670528).

87384080 is an abundant number, since it is smaller than the sum of its proper divisors (163956976).

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

87384080 is a wasteful number, since it uses less digits than its factorization.

87384080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 235 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 87384080 is about 9347.9452287655. The cubic root of 87384080 is about 443.7558650286.

The spelling of 87384080 in words is "eighty-seven million, three hundred eighty-four thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 17 20 28 34 35 40 56 67 68 70 80 85 112 119 134 136 137 140 170 238 268 272 274 280 335 340 469 476 536 548 560 595 670 680 685 938 952 959 1072 1096 1139 1190 1340 1360 1370 1876 1904 1918 2192 2278 2329 2345 2380 2680 2740 3752 3836 4556 4658 4690 4760 4795 5360 5480 5695 7504 7672 7973 9112 9179 9316 9380 9520 9590 10960 11390 11645 15344 15946 16303 18224 18358 18632 18760 19180 22780 23290 31892 32606 36716 37264 37520 38360 39865 45560 45895 46580 63784 64253 65212 73432 76720 79730 81515 91120 91790 93160 127568 128506 130424 146864 156043 159460 163030 183580 186320 257012 260848 312086 318920 321265 326060 367160 514024 624172 637840 642530 652120 734320 780215 1028048 1092301 1248344 1285060 1304240 1560430 2184602 2496688 2570120 3120860 4369204 5140240 5461505 6241720 8738408 10923010 12483440 17476816 21846020 43692040 87384080