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8019163812 = 22311163372707
BaseRepresentation
bin1110111011111101…
…01011101010100100
3202200212110201201010
413131332223222210
5112410401220222
63403422302220
7402502524222
oct73576535244
922625421633
108019163812
113445677510
121679727970
139aa4c2a5a
14561055b12
1531e03380c
hex1ddfabaa4

8019163812 has 48 divisors (see below), whose sum is σ = 20537701632. Its totient is φ = 2415134880.

The previous prime is 8019163753. The next prime is 8019163843. The reversal of 8019163812 is 2183619108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164838 + ... + 207869.

It is an arithmetic number, because the mean of its divisors is an integer number (427868784).

Almost surely, 28019163812 is an apocalyptic number.

It is an amenable number.

8019163812 is an abundant number, since it is smaller than the sum of its proper divisors (12518537820).

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

8019163812 is a wasteful number, since it uses less digits than its factorization.

8019163812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372888 (or 372886 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 8019163812 is about 89549.7839863391. The cubic root of 8019163812 is about 2001.5957108482.

The spelling of 8019163812 in words is "eight billion, nineteen million, one hundred sixty-three thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 163 326 489 652 978 1793 1956 3586 5379 7172 10758 21516 372707 745414 1118121 1490828 2236242 4099777 4472484 8199554 12299331 16399108 24598662 49197324 60751241 121502482 182253723 243004964 364507446 668263651 729014892 1336527302 2004790953 2673054604 4009581906 8019163812