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82097960 = 2357293207
BaseRepresentation
bin1001110010010…
…11011100101000
312201111000020012
410321023130220
5132004113320
612051351052
72014551440
oct471133450
9181430205
1082097960
114238445a
12235b2488
1314016299
14ac91120
15731a4c5
hex4e4b728

82097960 has 32 divisors (see below), whose sum is σ = 211109760. Its totient is φ = 28147776.

The previous prime is 82097941. The next prime is 82097963. The reversal of 82097960 is 6979028.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (82097963) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 146324 + ... + 146883.

It is an arithmetic number, because the mean of its divisors is an integer number (6597180).

Almost surely, 282097960 is an apocalyptic number.

It is an amenable number.

82097960 is an abundant number, since it is smaller than the sum of its proper divisors (129011800).

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

82097960 is a wasteful number, since it uses less digits than its factorization.

82097960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293225 (or 293221 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 82097960 is about 9060.7924598238. The cubic root of 82097960 is about 434.6210819288.

The spelling of 82097960 in words is "eighty-two million, ninety-seven thousand, nine hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 293207 586414 1172828 1466035 2052449 2345656 2932070 4104898 5864140 8209796 10262245 11728280 16419592 20524490 41048980 82097960