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82210970 = 25231013539
BaseRepresentation
bin1001110011001…
…11000010011010
312201200202020202
410321213002122
5132021222340
612054022202
72015532062
oct471470232
9181622222
1082210970
1142451356
1223647962
131405585a
14acc03a2
15733dc15
hex4e6709a

82210970 has 32 divisors (see below), whose sum is σ = 155986560. Its totient is φ = 31134400.

The previous prime is 82210951. The next prime is 82210987. The reversal of 82210970 is 7901228.

It is a happy 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, 21461 + ... + 24999.

It is an arithmetic number, because the mean of its divisors is an integer number (4874580).

Almost surely, 282210970 is an apocalyptic number.

82210970 is a deficient number, since it is larger than the sum of its proper divisors (73775590).

82210970 is a wasteful number, since it uses less digits than its factorization.

82210970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 82210970 is about 9067.0265247213. The cubic root of 82210970 is about 434.8204129433.

The spelling of 82210970 in words is "eighty-two million, two hundred ten thousand, nine hundred seventy".

Divisors: 1 2 5 10 23 46 101 115 202 230 505 1010 2323 3539 4646 7078 11615 17695 23230 35390 81397 162794 357439 406985 714878 813970 1787195 3574390 8221097 16442194 41105485 82210970