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82820248 = 2371478933
BaseRepresentation
bin1001110111110…
…11110010011000
312202211201000121
410323323302120
5132200221443
612115043024
72023650310
oct473736230
9182751017
1082820248
1142828095
12238a0474
1314209c84
14addc440
15740e4ed
hex4efbc98

82820248 has 16 divisors (see below), whose sum is σ = 177472080. Its totient is φ = 35494368.

The previous prime is 82820239. The next prime is 82820267. The reversal of 82820248 is 84202828.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739411 + ... + 739522.

It is an arithmetic number, because the mean of its divisors is an integer number (11092005).

Almost surely, 282820248 is an apocalyptic number.

It is an amenable number.

82820248 is an abundant number, since it is smaller than the sum of its proper divisors (94651832).

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

82820248 is a wasteful number, since it uses less digits than its factorization.

82820248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478946 (or 1478942 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 34.

The square root of 82820248 is about 9100.5630595035. The cubic root of 82820248 is about 435.8919435948.

The spelling of 82820248 in words is "eighty-two million, eight hundred twenty thousand, two hundred forty-eight".

Divisors: 1 2 4 7 8 14 28 56 1478933 2957866 5915732 10352531 11831464 20705062 41410124 82820248