[go: up one dir, main page]

Search a number
-
+
87340680 = 2334573851
BaseRepresentation
bin1010011010010…
…11011010001000
320002100100220000
411031023122020
5134324400210
612400003000
72110245360
oct515133210
9202310800
1087340680
1145335389
1225300460
131513069b
14b8579a0
157a03ac0
hex534b688

87340680 has 160 divisors (see below), whose sum is σ = 335586240. Its totient is φ = 19958400.

The previous prime is 87340667. The next prime is 87340691. The reversal of 87340680 is 8604378.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20755 + ... + 24605.

It is an arithmetic number, because the mean of its divisors is an integer number (2097414).

Almost surely, 287340680 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 87340680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167793120).

87340680 is an abundant number, since it is smaller than the sum of its proper divisors (248245560).

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

87340680 is a wasteful number, since it uses less digits than its factorization.

87340680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3881 (or 3868 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 87340680 is about 9345.6235747006. The cubic root of 87340680 is about 443.6823879002.

The spelling of 87340680 in words is "eighty-seven million, three hundred forty thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 27 28 30 35 36 40 42 45 54 56 60 63 70 72 81 84 90 105 108 120 126 135 140 162 168 180 189 210 216 252 270 280 315 324 360 378 405 420 504 540 567 630 648 756 810 840 945 1080 1134 1260 1512 1620 1890 2268 2520 2835 3240 3780 3851 4536 5670 7560 7702 11340 11553 15404 19255 22680 23106 26957 30808 34659 38510 46212 53914 57765 69318 77020 80871 92424 103977 107828 115530 134785 138636 154040 161742 173295 207954 215656 231060 242613 269570 277272 311931 323484 346590 404355 415908 462120 485226 519885 539140 623862 646968 693180 727839 808710 831816 970452 1039770 1078280 1213065 1247724 1386360 1455678 1559655 1617420 1940904 2079540 2183517 2426130 2495448 2911356 3119310 3234840 3639195 4159080 4367034 4852260 5822712 6238620 7278390 8734068 9704520 10917585 12477240 14556780 17468136 21835170 29113560 43670340 87340680