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8216082 = 2327197331
BaseRepresentation
bin11111010101111000010010
3120110102100100
4133111320102
54100403312
6452033230
7126556410
oct37257022
916412310
108216082
114701956
122902816
1319188b4
14113c2b0
15ac45dc
hex7d5e12

8216082 has 48 divisors (see below), whose sum is σ = 20509632. Its totient is φ = 2328480.

The previous prime is 8216063. The next prime is 8216099. The reversal of 8216082 is 2806128.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24657 + ... + 24987.

It is an arithmetic number, because the mean of its divisors is an integer number (427284).

Almost surely, 28216082 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8216082, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10254816).

8216082 is an abundant number, since it is smaller than the sum of its proper divisors (12293550).

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

8216082 is a wasteful number, since it uses less digits than its factorization.

8216082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 8216082 is about 2866.3708762126. The cubic root of 8216082 is about 201.7847100122.

It can be divided in two parts, 821 and 6082, that added together give a triangular number (6903 = T117).

The spelling of 8216082 in words is "eight million, two hundred sixteen thousand, eighty-two".

Divisors: 1 2 3 6 7 9 14 18 21 42 63 126 197 331 394 591 662 993 1182 1379 1773 1986 2317 2758 2979 3546 4137 4634 5958 6951 8274 12411 13902 20853 24822 41706 65207 130414 195621 391242 456449 586863 912898 1173726 1369347 2738694 4108041 8216082