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87078335760 = 24325139303241
BaseRepresentation
bin101000100011001000…
…1011111010100010000
322022202122020210020200
41101012101133110100
52411314023221020
6104000410535200
76201611433003
oct1210621372420
9268678223220
1087078335760
1133a254a5549
1214a62437500
138299737780
144300c8753a
1523e9b0d590
hex144645f510

87078335760 has 120 divisors (see below), whose sum is σ = 314933348184. Its totient is φ = 21434664960.

The previous prime is 87078335723. The next prime is 87078335783. The reversal of 87078335760 is 6753387078.

It can be written as a sum of positive squares in 4 ways, for example, as 27373824 + 87050961936 = 5232^2 + 295044^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a junction number, because it is equal to n+sod(n) for n = 87078335697 and 87078335706.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4642261 + ... + 4660980.

Almost surely, 287078335760 is an apocalyptic number.

87078335760 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87078335760 is an abundant number, since it is smaller than the sum of its proper divisors (227855012424).

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

87078335760 is a wasteful number, since it uses less digits than its factorization.

87078335760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9303273 (or 9303264 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 54.

The spelling of 87078335760 in words is "eighty-seven billion, seventy-eight million, three hundred thirty-five thousand, seven hundred sixty".

Divisors: 1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 30 36 39 40 45 48 52 60 65 72 78 80 90 104 117 120 130 144 156 180 195 208 234 240 260 312 360 390 468 520 585 624 720 780 936 1040 1170 1560 1872 2340 3120 4680 9360 9303241 18606482 27909723 37212964 46516205 55819446 74425928 83729169 93032410 111638892 120942133 139548615 148851856 167458338 186064820 223277784 241884266 279097230 334916676 362826399 372129640 418645845 446555568 483768532 558194460 604710665 669833352 725652798 744259280 837291690 967537064 1088479197 1116388920 1209421330 1339666704 1451305596 1674583380 1814131995 1935074128 2176958394 2232777840 2418842660 2902611192 3349166760 3628263990 4353916788 4837685320 5442395985 5805222384 6698333520 7256527980 8707833576 9675370640 10884791970 14513055960 17415667152 21769583940 29026111920 43539167880 87078335760