Search a number
-
+
79396780080 = 2435330819917
BaseRepresentation
bin100100111110001101…
…0101011100000110000
321120221022001022211110
41021330122223200300
52300101033430310
6100250244313320
75510345331642
oct1117432534060
9246838038743
1079396780080
113074345a022
12134799a2840
13764417c757
143bb29d4892
1520ea566d20
hex127c6ab830

79396780080 has 40 divisors (see below), whose sum is σ = 246130018992. Its totient is φ = 21172474624.

The previous prime is 79396780079. The next prime is 79396780159. The reversal of 79396780080 is 8008769397.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 79396780080.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 165409719 + ... + 165410198.

Almost surely, 279396780080 is an apocalyptic number.

It is an amenable number.

79396780080 is an abundant number, since it is smaller than the sum of its proper divisors (166733238912).

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

79396780080 is a wasteful number, since it uses less digits than its factorization.

79396780080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330819933 (or 330819927 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 57.

The spelling of 79396780080 in words is "seventy-nine billion, three hundred ninety-six million, seven hundred eighty thousand, eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 330819917 661639834 992459751 1323279668 1654099585 1984919502 2646559336 3308199170 3969839004 4962298755 5293118672 6616398340 7939678008 9924597510 13232796680 15879356016 19849195020 26465593360 39698390040 79396780080