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8106388620 = 22351155722051
BaseRepresentation
bin1111000110010110…
…11010110010001100
3202220221121012122120
413203023122302030
5113100213413440
63420220012540
7404612111031
oct74313326214
922827535576
108106388620
11348a932830
1216a2991150
139c25b2775
1456c87d388
15326a12dd0
hex1e32dac8c

8106388620 has 96 divisors (see below), whose sum is σ = 24806912256. Its totient is φ = 1961568000.

The previous prime is 8106388607. The next prime is 8106388621. The reversal of 8106388620 is 268836018.

It is not an unprimeable number, because it can be changed into a prime (8106388621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356595 + ... + 378645.

It is an arithmetic number, because the mean of its divisors is an integer number (258405336).

Almost surely, 28106388620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8106388620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12403456128).

8106388620 is an abundant number, since it is smaller than the sum of its proper divisors (16700523636).

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

8106388620 is a wasteful number, since it uses less digits than its factorization.

8106388620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22631 (or 22629 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 8106388620 is about 90035.4853377267. The cubic root of 8106388620 is about 2008.8267056590.

The spelling of 8106388620 in words is "eight billion, one hundred six million, three hundred eighty-eight thousand, six hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 557 660 1114 1671 2228 2785 3342 5570 6127 6684 8355 11140 12254 16710 18381 22051 24508 30635 33420 36762 44102 61270 66153 73524 88204 91905 110255 122540 132306 183810 220510 242561 264612 330765 367620 441020 485122 661530 727683 970244 1212805 1323060 1455366 2425610 2910732 3638415 4851220 7276830 12282407 14553660 24564814 36847221 49129628 61412035 73694442 122824070 135106477 147388884 184236105 245648140 270212954 368472210 405319431 540425908 675532385 736944420 810638862 1351064770 1621277724 2026597155 2702129540 4053194310 8106388620