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82097512 = 2376721881
BaseRepresentation
bin1001110010010…
…11010101101000
312201110222121121
410321023111220
5132004110022
612051345024
72014550230
oct471132550
9181428547
1082097512
1142384092
12235b2174
1314016013
14ac90cc0
15731a2c7
hex4e4b568

82097512 has 32 divisors (see below), whose sum is σ = 178557120. Its totient is φ = 34657920.

The previous prime is 82097473. The next prime is 82097549. The reversal of 82097512 is 21579028.

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 7 ways as a sum of consecutive naturals, for example, 7189 + ... + 14692.

It is an arithmetic number, because the mean of its divisors is an integer number (5579910).

Almost surely, 282097512 is an apocalyptic number.

It is an amenable number.

82097512 is an abundant number, since it is smaller than the sum of its proper divisors (96459608).

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

82097512 is a wasteful number, since it uses less digits than its factorization.

82097512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21961 (or 21957 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 82097512 is about 9060.7677378906. The cubic root of 82097512 is about 434.6202913667.

The spelling of 82097512 in words is "eighty-two million, ninety-seven thousand, five hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 67 134 268 469 536 938 1876 3752 21881 43762 87524 153167 175048 306334 612668 1225336 1466027 2932054 5864108 10262189 11728216 20524378 41048756 82097512