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83648992 = 2572979163
BaseRepresentation
bin1001111110001…
…10000111100000
312211101210211211
410333012013200
5132403231432
612144515504
72034001420
oct477060740
9184353754
1083648992
11432437a9
122401bb94
131443a25b
14b176480
157524d47
hex4fc61e0

83648992 has 96 divisors (see below), whose sum is σ = 198374400. Its totient is φ = 33965568.

The previous prime is 83648987. The next prime is 83649019. The reversal of 83648992 is 29984638.

Its product of digits (746496) is a multiple of the sum of its prime factors (288).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 513103 + ... + 513265.

It is an arithmetic number, because the mean of its divisors is an integer number (2066400).

Almost surely, 283648992 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 83648992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99187200).

83648992 is an abundant number, since it is smaller than the sum of its proper divisors (114725408).

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

83648992 is a wasteful number, since it uses less digits than its factorization.

83648992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 280 counting only the distinct ones).

The product of its digits is 746496, while the sum is 49.

The square root of 83648992 is about 9145.9822873216. The cubic root of 83648992 is about 437.3410439681.

The spelling of 83648992 in words is "eighty-three million, six hundred forty-eight thousand, nine hundred ninety-two".

Divisors: 1 2 4 7 8 14 16 28 29 32 56 58 79 112 116 158 163 203 224 232 316 326 406 464 553 632 652 812 928 1106 1141 1264 1304 1624 2212 2282 2291 2528 2608 3248 4424 4564 4582 4727 5216 6496 8848 9128 9164 9454 12877 16037 17696 18256 18328 18908 25754 32074 33089 36512 36656 37816 51508 64148 66178 73312 75632 90139 103016 128296 132356 151264 180278 206032 256592 264712 360556 373433 412064 513184 529424 721112 746866 1058848 1442224 1493732 2614031 2884448 2987464 5228062 5974928 10456124 11949856 20912248 41824496 83648992