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13455104520 = 23351113784097
BaseRepresentation
bin11001000011111110…
…01001101000001000
31021201201011010111110
430201333021220020
5210024001321040
610103045330320
7654300333654
oct144177115010
937651133443
1013455104520
1157850681a0
1227361069a0
131365767c10
14918d95a64
1553b39c980
hex321fc9a08

13455104520 has 128 divisors (see below), whose sum is σ = 47422247040. Its totient is φ = 3010928640.

The previous prime is 13455104503. The next prime is 13455104659. The reversal of 13455104520 is 2540155431.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 374889 + ... + 409208.

It is an arithmetic number, because the mean of its divisors is an integer number (370486305).

Almost surely, 213455104520 is an apocalyptic number.

13455104520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13455104520 is an abundant number, since it is smaller than the sum of its proper divisors (33967142520).

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

13455104520 is a wasteful number, since it uses less digits than its factorization.

13455104520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784135 (or 784131 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 13455104520 its reverse (2540155431), we get a palindrome (15995259951).

The spelling of 13455104520 in words is "thirteen billion, four hundred fifty-five million, one hundred four thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 11 12 13 15 20 22 24 26 30 33 39 40 44 52 55 60 65 66 78 88 104 110 120 130 132 143 156 165 195 220 260 264 286 312 330 390 429 440 520 572 660 715 780 858 1144 1320 1430 1560 1716 2145 2860 3432 4290 5720 8580 17160 784097 1568194 2352291 3136388 3920485 4704582 6272776 7840970 8625067 9409164 10193261 11761455 15681940 17250134 18818328 20386522 23522910 25875201 30579783 31363880 34500268 40773044 43125335 47045820 50966305 51750402 61159566 69000536 81546088 86250670 94091640 101932610 103500804 112125871 122319132 129376005 152898915 172501340 203865220 207001608 224251742 244638264 258752010 305797830 336377613 345002680 407730440 448503484 517504020 560629355 611595660 672755226 897006968 1035008040 1121258710 1223191320 1345510452 1681888065 2242517420 2691020904 3363776130 4485034840 6727552260 13455104520