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1303143044 = 227219349931
BaseRepresentation
bin100110110101100…
…0110001010000100
310100211002112012012
41031223012022010
510132101034134
6333150513352
744202350600
oct11553061204
93324075165
101303143044
11609654725
12304505858
13179c98778
14c50dc500
15796116ce
hex4dac6284

1303143044 has 36 divisors (see below), whose sum is σ = 2792457360. Its totient is φ = 529094160.

The previous prime is 1303143031. The next prime is 1303143047. The reversal of 1303143044 is 4403413031.

It is not an unprimeable number, because it can be changed into a prime (1303143047) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 171242 + ... + 178689.

It is an arithmetic number, because the mean of its divisors is an integer number (77568260).

Almost surely, 21303143044 is an apocalyptic number.

1303143044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1303143044 is an abundant number, since it is smaller than the sum of its proper divisors (1489314316).

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

1303143044 is a wasteful number, since it uses less digits than its factorization.

1303143044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349968 (or 349959 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1303143044 is about 36099.0726196671. The cubic root of 1303143044 is about 1092.2717382033.

Adding to 1303143044 its reverse (4403413031), we get a palindrome (5706556075).

The spelling of 1303143044 in words is "one billion, three hundred three million, one hundred forty-three thousand, forty-four".

Divisors: 1 2 4 7 14 19 28 38 49 76 98 133 196 266 532 931 1862 3724 349931 699862 1399724 2449517 4899034 6648689 9798068 13297378 17146619 26594756 34293238 46540823 68586476 93081646 186163292 325785761 651571522 1303143044