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83648488 = 237211191021
BaseRepresentation
bin1001111110001…
…01111111101000
312211101210011011
410333011333220
5132403222423
612144513304
72034000100
oct477057750
9184353134
1083648488
1143243390
122401b834
1314439c61
14b176200
157524b0d
hex4fc5fe8

83648488 has 96 divisors (see below), whose sum is σ = 209714400. Its totient is φ = 30844800.

The previous prime is 83648473. The next prime is 83648491. The reversal of 83648488 is 88484638.

It is a super-2 number, since 2×836484882 = 13994139089372288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81418 + ... + 82438.

It is an arithmetic number, because the mean of its divisors is an integer number (2184525).

Almost surely, 283648488 is an apocalyptic number.

83648488 is a gapful number since it is divisible by the number (88) 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 83648488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104857200).

83648488 is an abundant number, since it is smaller than the sum of its proper divisors (126065912).

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

83648488 is a wasteful number, since it uses less digits than its factorization.

83648488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071 (or 1060 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 49.

The square root of 83648488 is about 9145.9547341981. The cubic root of 83648488 is about 437.3401656139.

The spelling of 83648488 in words is "eighty-three million, six hundred forty-eight thousand, four hundred eighty-eight".

Divisors: 1 2 4 7 8 11 14 19 22 28 38 44 49 56 76 77 88 98 133 152 154 196 209 266 308 392 418 532 539 616 836 931 1021 1064 1078 1463 1672 1862 2042 2156 2926 3724 4084 4312 5852 7147 7448 8168 10241 11231 11704 14294 19399 20482 22462 28588 38798 40964 44924 50029 57176 77596 78617 81928 89848 100058 135793 155192 157234 200116 213389 271586 314468 400232 426778 543172 550319 628936 853556 950551 1086344 1100638 1493723 1707112 1901102 2201276 2987446 3802204 4402552 5974892 7604408 10456061 11949784 20912122 41824244 83648488