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83009952 = 2532436703
BaseRepresentation
bin1001111001010…
…10000110100000
312210012100020200
410330222012200
5132222304302
612123105200
72025400344
oct474520640
9183170220
1083009952
1142947673
1223972200
131427541c
14b04b624
15744a81c
hex4f2a1a0

83009952 has 72 divisors (see below), whose sum is σ = 241585344. Its totient is φ = 27022464.

The previous prime is 83009939. The next prime is 83009957. The reversal of 83009952 is 25990038.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (83009957) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9033 + ... + 15735.

It is an arithmetic number, because the mean of its divisors is an integer number (3355352).

Almost surely, 283009952 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 83009952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120792672).

83009952 is an abundant number, since it is smaller than the sum of its proper divisors (158575392).

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

83009952 is a wasteful number, since it uses less digits than its factorization.

83009952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6762 (or 6751 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 83009952 is about 9110.9797497305. The cubic root of 83009952 is about 436.2245007167.

The spelling of 83009952 in words is "eighty-three million, nine thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 43 48 72 86 96 129 144 172 258 288 344 387 516 688 774 1032 1376 1548 2064 3096 4128 6192 6703 12384 13406 20109 26812 40218 53624 60327 80436 107248 120654 160872 214496 241308 288229 321744 482616 576458 643488 864687 965232 1152916 1729374 1930464 2305832 2594061 3458748 4611664 5188122 6917496 9223328 10376244 13834992 20752488 27669984 41504976 83009952