Search a number
-
+
8121371304 = 233338390471
BaseRepresentation
bin1111001000001001…
…00100101010101000
3202221222210102000210
413210010210222220
5113113032340204
63421513101120
7405153342234
oct74404445250
922858712023
108121371304
113498336512
1216a79b77a0
139c572a267
1457085d5c4
15327ec2389
hex1e4124aa8

8121371304 has 16 divisors (see below), whose sum is σ = 20303428320. Its totient is φ = 2707123760.

The previous prime is 8121371263. The next prime is 8121371327. The reversal of 8121371304 is 4031731218.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169195212 + ... + 169195259.

It is an arithmetic number, because the mean of its divisors is an integer number (1268964270).

Almost surely, 28121371304 is an apocalyptic number.

It is an amenable number.

8121371304 is an abundant number, since it is smaller than the sum of its proper divisors (12182057016).

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

8121371304 is a wasteful number, since it uses less digits than its factorization.

8121371304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338390480 (or 338390476 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 8121371304 is about 90118.6512548873. The cubic root of 8121371304 is about 2010.0635528530.

The spelling of 8121371304 in words is "eight billion, one hundred twenty-one million, three hundred seventy-one thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 24 338390471 676780942 1015171413 1353561884 2030342826 2707123768 4060685652 8121371304