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8809403680 = 255711715049
BaseRepresentation
bin10000011010001010…
…01101010100100000
3211201221110002000101
420031011031110200
5121020201404210
64014052032144
7431206460440
oct101505152440
924657402011
108809403680
113810751410
12185a302654
13aa51392cc
145d7da0120
153685cda3a
hex20d14d520

8809403680 has 96 divisors (see below), whose sum is σ = 25947734400. Its totient is φ = 2745784320.

The previous prime is 8809403657. The next prime is 8809403717. The reversal of 8809403680 is 863049088.

It is a self number, because there is not a number n which added to its sum of digits gives 8809403680.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 345205 + ... + 369844.

It is an arithmetic number, because the mean of its divisors is an integer number (270288900).

Almost surely, 28809403680 is an apocalyptic number.

8809403680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8809403680 is an abundant number, since it is smaller than the sum of its proper divisors (17138330720).

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

8809403680 is a wasteful number, since it uses less digits than its factorization.

8809403680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715082 (or 715074 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 8809403680 is about 93858.4235963933. The cubic root of 8809403680 is about 2065.2953654742.

The spelling of 8809403680 in words is "eight billion, eight hundred nine million, four hundred three thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 11 14 16 20 22 28 32 35 40 44 55 56 70 77 80 88 110 112 140 154 160 176 220 224 280 308 352 385 440 560 616 770 880 1120 1232 1540 1760 2464 3080 6160 12320 715049 1430098 2860196 3575245 5005343 5720392 7150490 7865539 10010686 11440784 14300980 15731078 20021372 22881568 25026715 28601960 31462156 39327695 40042744 50053430 55058773 57203920 62924312 78655390 80085488 100106860 110117546 114407840 125848624 157310780 160170976 200213720 220235092 251697248 275293865 314621560 400427440 440470184 550587730 629243120 800854880 880940368 1101175460 1258486240 1761880736 2202350920 4404701840 8809403680