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39216078930 = 23572341198031
BaseRepresentation
bin100100100001011101…
…011110000001010010
310202020000222012221210
4210201131132001102
51120303304011210
630003212400550
72555545112430
oct444135360122
9122200865853
1039216078930
11156a44aa596
127725476156
13390c83c142
141c80429d50
151047c88e20
hex92175e052

39216078930 has 128 divisors (see below), whose sum is σ = 114978963456. Its totient is φ = 8364787200.

The previous prime is 39216078929. The next prime is 39216078947. The reversal of 39216078930 is 3987061293.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 39216078930.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 99015 + ... + 297045.

It is an arithmetic number, because the mean of its divisors is an integer number (898273152).

Almost surely, 239216078930 is an apocalyptic number.

39216078930 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a pronic number, being equal to 198030×198031.

It is a practical number, because each smaller number is the sum of distinct divisors of 39216078930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57489481728).

39216078930 is an abundant number, since it is smaller than the sum of its proper divisors (75762884526).

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

39216078930 is a wasteful number, since it uses less digits than its factorization.

39216078930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198112.

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 39216078930 in words is "thirty-nine billion, two hundred sixteen million, seventy-eight thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 23 30 35 41 42 46 69 70 82 105 115 123 138 161 205 210 230 246 287 322 345 410 483 574 615 690 805 861 943 966 1230 1435 1610 1722 1886 2415 2829 2870 4305 4715 4830 5658 6601 8610 9430 13202 14145 19803 28290 33005 39606 66010 99015 198030 198031 396062 594093 990155 1188186 1386217 1980310 2772434 2970465 4158651 4554713 5940930 6931085 8119271 8317302 9109426 13664139 13862170 16238542 20793255 22773565 24357813 27328278 31882991 40596355 41586510 45547130 48715626 56834897 63765982 68320695 81192710 95648973 113669794 121789065 136641390 159414955 170504691 186743233 191297946 243578130 284174485 318829910 341009382 373486466 478244865 560229699 568348970 852523455 933716165 956489730 1120459398 1307202631 1705046910 1867432330 2614405262 2801148495 3921607893 5602296990 6536013155 7843215786 13072026310 19608039465 39216078930