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13030423450 = 252113238513
BaseRepresentation
bin11000010001010110…
…00111101110011010
31020122010001002120221
430020223013232122
5203141242022300
65552555110254
7640622525512
oct141053075632
936563032527
1013030423450
115587375000
122637a4238a
1312c8794645
148b8808842
15513e6131a
hex308ac7b9a

13030423450 has 96 divisors (see below), whose sum is σ = 27820755072. Its totient is φ = 4531788800.

The previous prime is 13030423391. The next prime is 13030423481. The reversal of 13030423450 is 5432403031.

13030423450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1526394 + ... + 1534906.

It is an arithmetic number, because the mean of its divisors is an integer number (289799532).

Almost surely, 213030423450 is an apocalyptic number.

13030423450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13030423450 is an abundant number, since it is smaller than the sum of its proper divisors (14790331622).

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

13030423450 is a wasteful number, since it uses less digits than its factorization.

13030423450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8581 (or 8554 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 13030423450 its reverse (5432403031), we get a palindrome (18462826481).

The spelling of 13030423450 in words is "thirteen billion, thirty million, four hundred twenty-three thousand, four hundred fifty".

Divisors: 1 2 5 10 11 22 23 25 46 50 55 110 115 121 230 242 253 275 506 550 575 605 1150 1210 1265 1331 2530 2662 2783 3025 5566 6050 6325 6655 8513 12650 13310 13915 17026 27830 30613 33275 42565 61226 66550 69575 85130 93643 139150 153065 187286 195799 212825 306130 391598 425650 468215 765325 936430 978995 1030073 1530650 1957990 2060146 2153789 2341075 4307578 4682150 4894975 5150365 9789950 10300730 10768945 11330803 21537890 22661606 23691679 25751825 47383358 51503650 53844725 56654015 107689450 113308030 118458395 236916790 260608469 283270075 521216938 566540150 592291975 1184583950 1303042345 2606084690 6515211725 13030423450