Search a number
-
+
7130847420 = 2233513205273
BaseRepresentation
bin1101010010000100…
…00001100010111100
3200101221221120201000
412221002001202330
5104100444104140
63135330450300
7341465126424
oct65102014274
920357846630
107130847420
11302a1a5234
121470133990
1389845a358
144b909b484
152bb063a30
hex1a90818bc

7130847420 has 48 divisors (see below), whose sum is σ = 22184860320. Its totient is φ = 1901559168.

The previous prime is 7130847419. The next prime is 7130847431. The reversal of 7130847420 is 247480317.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 6602097 + ... + 6603176.

It is an arithmetic number, because the mean of its divisors is an integer number (462184590).

Almost surely, 27130847420 is an apocalyptic number.

It is an amenable number.

7130847420 is an abundant number, since it is smaller than the sum of its proper divisors (15054012900).

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

7130847420 is a wasteful number, since it uses less digits than its factorization.

7130847420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13205291 (or 13205283 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 7130847420 is about 84444.3451037427. The cubic root of 7130847420 is about 1924.7768264354.

The spelling of 7130847420 in words is "seven billion, one hundred thirty million, eight hundred forty-seven thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 13205273 26410546 39615819 52821092 66026365 79231638 118847457 132052730 158463276 198079095 237694914 264105460 356542371 396158190 475389828 594237285 713084742 792316380 1188474570 1426169484 1782711855 2376949140 3565423710 7130847420