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82196730 = 232571129409
BaseRepresentation
bin1001110011000…
…11100011111010
312201200000201100
410321203203322
5132020243410
612053432230
72015442420
oct471434372
9181600640
1082196730
1142441690
122363b676
131404c225
14acb9110
1573398c0
hex4e638fa

82196730 has 192 divisors, whose sum is σ = 276307200. Its totient is φ = 16450560.

The previous prime is 82196713. The next prime is 82196743. The reversal of 82196730 is 3769128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 200766 + ... + 201174.

It is an arithmetic number, because the mean of its divisors is an integer number (1439100).

Almost surely, 282196730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82196730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138153600).

82196730 is an abundant number, since it is smaller than the sum of its proper divisors (194110470).

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

82196730 is a wasteful number, since it uses less digits than its factorization.

82196730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 82196730 is about 9066.2412277636. The cubic root of 82196730 is about 434.7953059930.

The spelling of 82196730 in words is "eighty-two million, one hundred ninety-six thousand, seven hundred thirty".