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83808928 = 2571372731
BaseRepresentation
bin1001111111011…
…01001010100000
312211200221020101
410333231022200
5132423341203
612152152144
72035235620
oct477551240
9184627211
1083808928
1143342985
1224098654
1314494ca8
14b1b8880
15755741d
hex4fed2a0

83808928 has 48 divisors (see below), whose sum is σ = 190016064. Its totient is φ = 35642880.

The previous prime is 83808919. The next prime is 83808979. The reversal of 83808928 is 82980838.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29323 + ... + 32053.

It is an arithmetic number, because the mean of its divisors is an integer number (3958668).

Almost surely, 283808928 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 83808928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95008032).

83808928 is an abundant number, since it is smaller than the sum of its proper divisors (106207136).

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

83808928 is a wasteful number, since it uses less digits than its factorization.

83808928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885 (or 2877 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 83808928 is about 9154.7216232936. The cubic root of 83808928 is about 437.6195970177.

The spelling of 83808928 in words is "eighty-three million, eight hundred eight thousand, nine hundred twenty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 137 224 274 548 959 1096 1918 2192 2731 3836 4384 5462 7672 10924 15344 19117 21848 30688 38234 43696 76468 87392 152936 305872 374147 611744 748294 1496588 2619029 2993176 5238058 5986352 10476116 11972704 20952232 41904464 83808928