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82262620 = 225111991879
BaseRepresentation
bin1001110011100…
…11101001011100
312201210101002201
410321303221130
5132024400440
612055101244
72016135466
oct471635134
9181711081
1082262620
1142487140
1223671824
131407320b
14acd5136
15734e19a
hex4e73a5c

82262620 has 48 divisors (see below), whose sum is σ = 189504000. Its totient is φ = 29747520.

The previous prime is 82262617. The next prime is 82262671. The reversal of 82262620 is 2626228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42841 + ... + 44719.

It is an arithmetic number, because the mean of its divisors is an integer number (3948000).

Almost surely, 282262620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82262620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94752000).

82262620 is an abundant number, since it is smaller than the sum of its proper divisors (107241380).

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

82262620 is a wasteful number, since it uses less digits than its factorization.

82262620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098 (or 2096 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 82262620 is about 9069.8743100442. The cubic root of 82262620 is about 434.9114542106.

Adding to 82262620 its reverse (2626228), we get a palindrome (84888848).

The spelling of 82262620 in words is "eighty-two million, two hundred sixty-two thousand, six hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 199 220 398 796 995 1879 1990 2189 3758 3980 4378 7516 8756 9395 10945 18790 20669 21890 37580 41338 43780 82676 103345 206690 373921 413380 747842 1495684 1869605 3739210 4113131 7478420 8226262 16452524 20565655 41131310 82262620