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82820360 = 2357295787
BaseRepresentation
bin1001110111110…
…11110100001000
312202211201011202
410323323310020
5132200222420
612115043332
72023650530
oct473736410
9182751152
1082820360
1142828187
12238a0548
131420a03c
14addc4c0
15740e575
hex4efbd08

82820360 has 32 divisors (see below), whose sum is σ = 212967360. Its totient is φ = 28395456.

The previous prime is 82820347. The next prime is 82820363. The reversal of 82820360 is 6302828.

It is not an unprimeable number, because it can be changed into a prime (82820363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147614 + ... + 148173.

It is an arithmetic number, because the mean of its divisors is an integer number (6655230).

Almost surely, 282820360 is an apocalyptic number.

It is an amenable number.

82820360 is an abundant number, since it is smaller than the sum of its proper divisors (130147000).

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

82820360 is a wasteful number, since it uses less digits than its factorization.

82820360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295805 (or 295801 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 82820360 is about 9100.5692129668. The cubic root of 82820360 is about 435.8921400841.

The spelling of 82820360 in words is "eighty-two million, eight hundred twenty thousand, three hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 295787 591574 1183148 1478935 2070509 2366296 2957870 4141018 5915740 8282036 10352545 11831480 16564072 20705090 41410180 82820360