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487383820 = 2257111916657
BaseRepresentation
bin11101000011001…
…110001100001100
31020222002122220121
4131003032030030
51444232240240
6120210154324
715035460040
oct3503161414
91228078817
10487383820
1123012a750
121172829a4
1379c887c1
1448a30020
152cbc504a
hex1d0ce30c

487383820 has 96 divisors (see below), whose sum is σ = 1343301120. Its totient is φ = 143907840.

The previous prime is 487383817. The next prime is 487383859. The reversal of 487383820 is 28383784.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20932 + ... + 37588.

It is an arithmetic number, because the mean of its divisors is an integer number (13992720).

Almost surely, 2487383820 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 487383820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (671650560).

487383820 is an abundant number, since it is smaller than the sum of its proper divisors (855917300).

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

487383820 is a wasteful number, since it uses less digits than its factorization.

487383820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16703 (or 16701 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 43.

The square root of 487383820 is about 22076.7710501332. The cubic root of 487383820 is about 786.9679321870.

The spelling of 487383820 in words is "four hundred eighty-seven million, three hundred eighty-three thousand, eight hundred twenty".

Divisors: 1 2 4 5 7 10 11 14 19 20 22 28 35 38 44 55 70 76 77 95 110 133 140 154 190 209 220 266 308 380 385 418 532 665 770 836 1045 1330 1463 1540 2090 2660 2926 4180 5852 7315 14630 16657 29260 33314 66628 83285 116599 166570 183227 233198 316483 333140 366454 466396 582995 632966 732908 916135 1165990 1265932 1282589 1582415 1832270 2215381 2331980 2565178 3164830 3481313 3664540 4430762 5130356 6329660 6412945 6962626 8861524 11076905 12825890 13925252 17406565 22153810 24369191 25651780 34813130 44307620 48738382 69626260 97476764 121845955 243691910 487383820