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82878050 = 2521657561
BaseRepresentation
bin1001111000010…
…01111001100010
312202221122022102
410330021321202
5132204044200
612120210402
72024310653
oct474117142
9182848272
1082878050
1142867562
1223909a02
131422a388
14b01552a
1574216d5
hex4f09e62

82878050 has 12 divisors (see below), whose sum is σ = 154153266. Its totient is φ = 33151200.

The previous prime is 82878007. The next prime is 82878053. The reversal of 82878050 is 5087828.

It can be written as a sum of positive squares in 3 ways, for example, as 49434961 + 33443089 = 7031^2 + 5783^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 82877995 and 82878013.

It is not an unprimeable number, because it can be changed into a prime (82878053) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 828731 + ... + 828830.

Almost surely, 282878050 is an apocalyptic number.

82878050 is a deficient number, since it is larger than the sum of its proper divisors (71275216).

82878050 is a wasteful number, since it uses less digits than its factorization.

82878050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1657573 (or 1657568 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 38.

The square root of 82878050 is about 9103.7382431614. The cubic root of 82878050 is about 435.9933260769.

The spelling of 82878050 in words is "eighty-two million, eight hundred seventy-eight thousand, fifty".

Divisors: 1 2 5 10 25 50 1657561 3315122 8287805 16575610 41439025 82878050