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8072668080 = 2432516076977
BaseRepresentation
bin1111000010010101…
…10010001110110000
3202211121011000202200
413201022302032300
5113013100334310
63413013143200
7404022355311
oct74112621660
922747130680
108072668080
1134728a1014
12169362ab00
139b8607199
145681c2608
15323aa19c0
hex1e12b23b0

8072668080 has 120 divisors (see below), whose sum is σ = 27131468832. Its totient is φ = 2151063552.

The previous prime is 8072668067. The next prime is 8072668099. The reversal of 8072668080 is 808662708.

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

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 1153552 + ... + 1160528.

Almost surely, 28072668080 is an apocalyptic number.

8072668080 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 8072668080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13565734416).

8072668080 is an abundant number, since it is smaller than the sum of its proper divisors (19058800752).

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

8072668080 is a wasteful number, since it uses less digits than its factorization.

8072668080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8603 (or 8594 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 8072668080 is about 89848.0276912076. The cubic root of 8072668080 is about 2006.0374297156.

The spelling of 8072668080 in words is "eight billion, seventy-two million, six hundred sixty-eight thousand, eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 1607 3214 4821 6428 6977 8035 9642 12856 13954 14463 16070 19284 20931 24105 25712 27908 28926 32140 34885 38568 41862 48210 55816 57852 62793 64280 69770 72315 77136 83724 96420 104655 111632 115704 125586 128560 139540 144630 167448 192840 209310 231408 251172 279080 289260 313965 334896 385680 418620 502344 558160 578520 627930 837240 1004688 1157040 1255860 1674480 2511720 5023440 11212039 22424078 33636117 44848156 56060195 67272234 89696312 100908351 112120390 134544468 168180585 179392624 201816702 224240780 269088936 336361170 403633404 448481560 504541755 538177872 672722340 807266808 896963120 1009083510 1345444680 1614533616 2018167020 2690889360 4036334040 8072668080