Search a number
-
+
8102804442 = 2311399711987
BaseRepresentation
bin1111000101111011…
…01111101111011010
3202220200212010002020
413202331233233122
5113043304220232
63420011115310
7404536462365
oct74275575732
922820763066
108102804442
1134889049a7
1216a1742b36
139c1929255
1456c1c90dc
15326555e2c
hex1e2f6fbda

8102804442 has 32 divisors (see below), whose sum is σ = 16366784832. Its totient is φ = 2674124544.

The previous prime is 8102804431. The next prime is 8102804447. The reversal of 8102804442 is 2444082018.

It is not an unprimeable number, because it can be changed into a prime (8102804447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669973 + ... + 681959.

It is an arithmetic number, because the mean of its divisors is an integer number (511462026).

Almost surely, 28102804442 is an apocalyptic number.

8102804442 is an abundant number, since it is smaller than the sum of its proper divisors (8263980390).

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

8102804442 is a wasteful number, since it uses less digits than its factorization.

8102804442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13102.

The product of its (nonzero) digits is 16384, while the sum is 33.

The square root of 8102804442 is about 90015.5788849908. The cubic root of 8102804442 is about 2008.5305995373.

The spelling of 8102804442 in words is "eight billion, one hundred two million, eight hundred four thousand, four hundred forty-two".

Divisors: 1 2 3 6 113 226 339 678 997 1994 2991 5982 11987 23974 35961 71922 112661 225322 337983 675966 1354531 2709062 4063593 8127186 11951039 23902078 35853117 71706234 1350467407 2700934814 4051402221 8102804442