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30852198 = 2331371619
BaseRepresentation
bin111010110110…
…0010001100110
32011001110021000
41311230101212
530344232243
63021134130
7523145046
oct165542146
964043230
1030852198
1116462793
12a3ba346
136512b50
144151726
152a965d3
hex1d6c466

30852198 has 64 divisors (see below), whose sum is σ = 74995200. Its totient is φ = 9344160.

The previous prime is 30852197. The next prime is 30852233. The reversal of 30852198 is 89125803.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30852197) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 49533 + ... + 50151.

It is an arithmetic number, because the mean of its divisors is an integer number (1171800).

Almost surely, 230852198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30852198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37497600).

30852198 is an abundant number, since it is smaller than the sum of its proper divisors (44143002).

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

30852198 is a wasteful number, since it uses less digits than its factorization.

30852198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 30852198 is about 5554.4754927896. The cubic root of 30852198 is about 313.6380198572.

The spelling of 30852198 in words is "thirty million, eight hundred fifty-two thousand, one hundred ninety-eight".

Divisors: 1 2 3 6 9 13 18 26 27 39 54 71 78 117 142 213 234 351 426 619 639 702 923 1238 1278 1846 1857 1917 2769 3714 3834 5538 5571 8047 8307 11142 16094 16614 16713 24141 24921 33426 43949 48282 49842 72423 87898 131847 144846 217269 263694 395541 434538 571337 791082 1142674 1186623 1714011 2373246 3428022 5142033 10284066 15426099 30852198