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82379392 = 27643589
BaseRepresentation
bin1001110100100…
…00001010000000
312202000022021121
410322100022000
5132042120032
612101402024
72020133104
oct472201200
9182008247
1082379392
1142556947
1223709314
13140b4404
14ad25904
157373a97
hex4e90280

82379392 has 16 divisors (see below), whose sum is σ = 164115450. Its totient is φ = 41189632.

The previous prime is 82379359. The next prime is 82379441. The reversal of 82379392 is 29397328.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 70157376 + 12222016 = 8376^2 + 3496^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321667 + ... + 321922.

Almost surely, 282379392 is an apocalyptic number.

It is an amenable number.

82379392 is a deficient number, since it is larger than the sum of its proper divisors (81736058).

82379392 is an equidigital number, since it uses as much as digits as its factorization.

82379392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643603 (or 643591 counting only the distinct ones).

The product of its digits is 163296, while the sum is 43.

The square root of 82379392 is about 9076.3093821222. The cubic root of 82379392 is about 435.1171428909.

The spelling of 82379392 in words is "eighty-two million, three hundred seventy-nine thousand, three hundred ninety-two".

Divisors: 1 2 4 8 16 32 64 128 643589 1287178 2574356 5148712 10297424 20594848 41189696 82379392