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13430312400 = 2435278714221
BaseRepresentation
bin11001000001000001…
…00100110111010000
31021122222111120002210
430200200210313100
5210001124444100
610100402112120
7653546525511
oct144040446720
937588446083
1013430312400
11577207453a
12272994b640
13136059751b
14915980a08
15539101c50
hex320824dd0

13430312400 has 120 divisors (see below), whose sum is σ = 43079461984. Its totient is φ = 3576614400.

The previous prime is 13430312377. The next prime is 13430312447. The reversal of 13430312400 is 421303431.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 937290 + ... + 951510.

Almost surely, 213430312400 is an apocalyptic number.

13430312400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13430312400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21539730992).

13430312400 is an abundant number, since it is smaller than the sum of its proper divisors (29649149584).

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

13430312400 is a wasteful number, since it uses less digits than its factorization.

13430312400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15029 (or 15018 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13430312400 its reverse (421303431), we get a palindrome (13851615831).

It can be divided in two parts, 1343031 and 2400, that added together give a palindrome (1345431).

The spelling of 13430312400 in words is "thirteen billion, four hundred thirty million, three hundred twelve thousand, four hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 40 48 50 60 75 80 100 120 150 200 240 300 400 600 787 1200 1574 2361 3148 3935 4722 6296 7870 9444 11805 12592 14221 15740 18888 19675 23610 28442 31480 37776 39350 42663 47220 56884 59025 62960 71105 78700 85326 94440 113768 118050 142210 157400 170652 188880 213315 227536 236100 284420 314800 341304 355525 426630 472200 568840 682608 711050 853260 944400 1066575 1137680 1422100 1706520 2133150 2844200 3413040 4266300 5688400 8532600 11191927 17065200 22383854 33575781 44767708 55959635 67151562 89535416 111919270 134303124 167878905 179070832 223838540 268606248 279798175 335757810 447677080 537212496 559596350 671515620 839394525 895354160 1119192700 1343031240 1678789050 2238385400 2686062480 3357578100 4476770800 6715156200 13430312400