Search a number
-
+
80478528195 = 3513599688999
BaseRepresentation
bin100101011110011100…
…1001110001011000011
321200201200112211021110
41022330321032023003
52304310000400240
6100545450054403
75546222126352
oct1127471161303
9250650484243
1080478528195
113114903842a
121372011a403
13778730c8b0
143c76541999
1521604e4c80
hex12bce4e2c3

80478528195 has 32 divisors (see below), whose sum is σ = 138902400000. Its totient is φ = 39553997184.

The previous prime is 80478528131. The next prime is 80478528199. The reversal of 80478528195 is 59182587408.

It is not a de Polignac number, because 80478528195 - 26 = 80478528131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80478528199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 227695 + ... + 461304.

It is an arithmetic number, because the mean of its divisors is an integer number (4340700000).

Almost surely, 280478528195 is an apocalyptic number.

80478528195 is a deficient number, since it is larger than the sum of its proper divisors (58423871805).

80478528195 is a wasteful number, since it uses less digits than its factorization.

80478528195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689619.

The product of its (nonzero) digits is 6451200, while the sum is 57.

The spelling of 80478528195 in words is "eighty billion, four hundred seventy-eight million, five hundred twenty-eight thousand, one hundred ninety-five".

Divisors: 1 3 5 13 15 39 65 195 599 1797 2995 7787 8985 23361 38935 116805 688999 2066997 3444995 8956987 10334985 26870961 44784935 134354805 412710401 1238131203 2063552005 5365235213 6190656015 16095705639 26826176065 80478528195