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82042756 = 22193106273
BaseRepresentation
bin1001110001111…
…01111110000100
312201101012111121
410320331332010
5132000332011
612050243324
72014231465
oct470757604
9181335447
1082042756
1142346a34
1223586544
1313cc7113
14ac78d6c
157308e71
hex4e3df84

82042756 has 12 divisors (see below), whose sum is σ = 144320092. Its totient is φ = 40808448.

The previous prime is 82042739. The next prime is 82042757. The reversal of 82042756 is 65724028.

It can be written as a sum of positive squares in 2 ways, for example, as 5760000 + 76282756 = 2400^2 + 8734^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (82042757) 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, 52365 + ... + 53908.

Almost surely, 282042756 is an apocalyptic number.

It is an amenable number.

82042756 is a deficient number, since it is larger than the sum of its proper divisors (62277336).

82042756 is a wasteful number, since it uses less digits than its factorization.

82042756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106470 (or 106468 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 82042756 is about 9057.7456356425. The cubic root of 82042756 is about 434.5236446643.

The spelling of 82042756 in words is "eighty-two million, forty-two thousand, seven hundred fifty-six".

Divisors: 1 2 4 193 386 772 106273 212546 425092 20510689 41021378 82042756