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82069746 = 23111243481
BaseRepresentation
bin1001110010001…
…00100011110010
312201102120112020
410321010203302
5132002212441
612051012310
72014403253
oct471044362
9181376466
1082069746
1142365240
122359a096
13140064a5
14ac84b2a
157311e66
hex4e448f2

82069746 has 16 divisors (see below), whose sum is σ = 179061408. Its totient is φ = 24869600.

The previous prime is 82069723. The next prime is 82069751. The reversal of 82069746 is 64796028.

It is a junction number, because it is equal to n+sod(n) for n = 82069698 and 82069707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621675 + ... + 621806.

It is an arithmetic number, because the mean of its divisors is an integer number (11191338).

Almost surely, 282069746 is an apocalyptic number.

82069746 is an abundant number, since it is smaller than the sum of its proper divisors (96991662).

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

82069746 is a wasteful number, since it uses less digits than its factorization.

82069746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243497.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 82069746 is about 9059.2353982000. The cubic root of 82069746 is about 434.5712885511.

The spelling of 82069746 in words is "eighty-two million, sixty-nine thousand, seven hundred forty-six".

Divisors: 1 2 3 6 11 22 33 66 1243481 2486962 3730443 7460886 13678291 27356582 41034873 82069746