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8201911630 = 25111797103439
BaseRepresentation
bin1111010001101111…
…10011110101001110
3210011121100021120211
413220313303311032
5113244142133010
63433511233034
7410152045543
oct75067636516
923147307524
108201911630
113529846670
12170a97877a
13a09319563
1457b426bca
153300d108a
hex1e8df3d4e

8201911630 has 128 divisors (see below), whose sum is σ = 17435658240. Its totient is φ = 2744893440.

The previous prime is 8201911607. The next prime is 8201911643. The reversal of 8201911630 is 361191028.

It is a junction number, because it is equal to n+sod(n) for n = 8201911592 and 8201911601.

It is a congruent number.

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, 18682951 + ... + 18683389.

It is an arithmetic number, because the mean of its divisors is an integer number (136216080).

Almost surely, 28201911630 is an apocalyptic number.

8201911630 is an abundant number, since it is smaller than the sum of its proper divisors (9233746610).

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

8201911630 is a wasteful number, since it uses less digits than its factorization.

8201911630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674.

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 8201911630 is about 90564.4059771829. The cubic root of 8201911630 is about 2016.6863646127.

The spelling of 8201911630 in words is "eight billion, two hundred one million, nine hundred eleven thousand, six hundred thirty".

Divisors: 1 2 5 10 11 17 22 34 55 85 97 103 110 170 187 194 206 374 439 485 515 878 935 970 1030 1067 1133 1649 1751 1870 2134 2195 2266 3298 3502 4390 4829 5335 5665 7463 8245 8755 9658 9991 10670 11330 14926 16490 17510 18139 19261 19982 24145 36278 37315 38522 42583 45217 48290 49955 74630 82093 85166 90434 90695 96305 99910 109901 164186 169847 181390 192610 212915 219802 226085 339694 410465 425830 452170 468413 497387 549505 723911 768689 820930 849235 936826 994774 1099010 1447822 1537378 1698470 1868317 2342065 2486935 3619555 3736634 3843445 4386049 4684130 4973870 7239110 7686890 7963021 8455579 8772098 9341585 15926042 16911158 18683170 21930245 39815105 42277895 43860490 48246539 74562833 79630210 84555790 96493078 149125666 241232695 372814165 482465390 745628330 820191163 1640382326 4100955815 8201911630