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82110428 = 2220527607
BaseRepresentation
bin1001110010011…
…10011111011100
312201111122022222
410321032133130
5132010013203
612051524512
72014633001
oct471163734
9181448288
1082110428
1142392864
12235b9738
131401bb6a
14ac958a8
15731e038
hex4e4e7dc

82110428 has 6 divisors (see below), whose sum is σ = 143693256. Its totient is φ = 41055212.

The previous prime is 82110401. The next prime is 82110449. The reversal of 82110428 is 82401128.

It is a junction number, because it is equal to n+sod(n) for n = 82110397 and 82110406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10263800 + ... + 10263807.

It is an arithmetic number, because the mean of its divisors is an integer number (23948876).

Almost surely, 282110428 is an apocalyptic number.

It is an amenable number.

82110428 is a deficient number, since it is larger than the sum of its proper divisors (61582828).

82110428 is a wasteful number, since it uses less digits than its factorization.

82110428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20527611 (or 20527609 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 82110428 is about 9061.4804529944. The cubic root of 82110428 is about 434.6430823998.

The spelling of 82110428 in words is "eighty-two million, one hundred ten thousand, four hundred twenty-eight".

Divisors: 1 2 4 20527607 41055214 82110428