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82826620 = 2254141331
BaseRepresentation
bin1001110111111…
…01010101111100
312202212000202121
410323331111330
5132200422440
612115132324
72024005012
oct473752574
9182760677
1082826620
1142831958
12238a40a4
131420cb46
14b0008b2
15741134a
hex4efd57c

82826620 has 12 divisors (see below), whose sum is σ = 173935944. Its totient is φ = 33130640.

The previous prime is 82826617. The next prime is 82826621. The reversal of 82826620 is 2662828.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82826621) 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, 2070646 + ... + 2070685.

It is an arithmetic number, because the mean of its divisors is an integer number (14494662).

Almost surely, 282826620 is an apocalyptic number.

It is an amenable number.

82826620 is an abundant number, since it is smaller than the sum of its proper divisors (91109324).

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

82826620 is a wasteful number, since it uses less digits than its factorization.

82826620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4141340 (or 4141338 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 82826620 is about 9100.9131409985. The cubic root of 82826620 is about 435.9031221504.

The spelling of 82826620 in words is "eighty-two million, eight hundred twenty-six thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 4141331 8282662 16565324 20706655 41413310 82826620