Search a number
-
+
7143031112 = 237719718521
BaseRepresentation
bin1101010011100001…
…00000000101001000
3200102210212120120212
412221300200011020
5104112103443422
63140443540252
7342003522410
oct65160400510
920383776525
107143031112
113036066aa8
12147422a688
1389ab34b39
144ba94d640
152bc16d9e2
hex1a9c20148

7143031112 has 64 divisors (see below), whose sum is σ = 15682947840. Its totient is φ = 2986905600.

The previous prime is 7143031099. The next prime is 7143031121. The reversal of 7143031112 is 2111303417.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376412 + ... + 394932.

It is an arithmetic number, because the mean of its divisors is an integer number (245046060).

Almost surely, 27143031112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7143031112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7841473920).

7143031112 is an abundant number, since it is smaller than the sum of its proper divisors (8539916728).

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

7143031112 is a wasteful number, since it uses less digits than its factorization.

7143031112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18702 (or 18698 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 7143031112 is about 84516.4546819139. The cubic root of 7143031112 is about 1925.8724206111.

Adding to 7143031112 its reverse (2111303417), we get a palindrome (9254334529).

The spelling of 7143031112 in words is "seven billion, one hundred forty-three million, thirty-one thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 71 97 142 194 284 388 497 568 679 776 994 1358 1988 2716 3976 5432 6887 13774 18521 27548 37042 48209 55096 74084 96418 129647 148168 192836 259294 385672 518588 1037176 1314991 1796537 2629982 3593074 5259964 7186148 9204937 10519928 12575759 14372296 18409874 25151518 36819748 50303036 73639496 100606072 127554127 255108254 510216508 892878889 1020433016 1785757778 3571515556 7143031112