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82029320 = 2352050733
BaseRepresentation
bin1001110001110…
…10101100001000
312201100112001222
410320322230020
5131444414240
612050101212
72014144352
oct470725410
9181315058
1082029320
114233792a
122357a808
1313cc0c79
14ac740d2
157304eb5
hex4e3ab08

82029320 has 16 divisors (see below), whose sum is σ = 184566060. Its totient is φ = 32811712.

The previous prime is 82029287. The next prime is 82029329. The reversal of 82029320 is 2392028.

It can be written as a sum of positive squares in 2 ways, for example, as 66552964 + 15476356 = 8158^2 + 3934^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 82029320.

It is not an unprimeable number, because it can be changed into a prime (82029329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025327 + ... + 1025406.

Almost surely, 282029320 is an apocalyptic number.

It is an amenable number.

82029320 is an abundant number, since it is smaller than the sum of its proper divisors (102536740).

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

82029320 is a wasteful number, since it uses less digits than its factorization.

82029320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050744 (or 2050740 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 82029320 is about 9057.0039196193. The cubic root of 82029320 is about 434.4999229745.

The spelling of 82029320 in words is "eighty-two million, twenty-nine thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 2050733 4101466 8202932 10253665 16405864 20507330 41014660 82029320