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80005960 = 23519232199
BaseRepresentation
bin1001100010011…
…00101101001000
312120112201112201
410301030231020
5130440142320
611534445544
71661016346
oct461145510
9176481481
1080005960
1141185731
12229638b4
1313763008
14a8a8996
15705570a
hex4c4cb48

80005960 has 96 divisors (see below), whose sum is σ = 199080000. Its totient is φ = 28854144.

The previous prime is 80005949. The next prime is 80005987. The reversal of 80005960 is 6950008.

80005960 = T23 + T24 + ... + T782.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 401941 + ... + 402139.

It is an arithmetic number, because the mean of its divisors is an integer number (2073750).

Almost surely, 280005960 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 80005960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99540000).

80005960 is an abundant number, since it is smaller than the sum of its proper divisors (119074040).

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

80005960 is a wasteful number, since it uses less digits than its factorization.

80005960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 80005960 is about 8944.6050779227. The cubic root of 80005960 is about 430.8976380996.

Adding to 80005960 its reverse (6950008), we get a palindrome (86955968).

The spelling of 80005960 in words is "eighty million, five thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 19 20 23 38 40 46 76 92 95 115 152 184 190 199 230 380 398 437 460 529 760 796 874 920 995 1058 1592 1748 1990 2116 2185 2645 3496 3781 3980 4232 4370 4577 5290 7562 7960 8740 9154 10051 10580 15124 17480 18308 18905 20102 21160 22885 30248 36616 37810 40204 45770 50255 75620 80408 86963 91540 100510 105271 151240 173926 183080 201020 210542 347852 402040 421084 434815 526355 695704 842168 869630 1052710 1739260 2000149 2105420 3478520 4000298 4210840 8000596 10000745 16001192 20001490 40002980 80005960