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13023101320 = 2354496611097
BaseRepresentation
bin11000010000011110…
…01100000110001000
31020121121021002111221
430020033030012020
5203132403220240
65552134131424
7640503351265
oct141017140610
936547232457
1013023101320
115583223859
1226354b0b74
1312c70cc918
148b786026c
155134b6a4a
hex3083cc188

13023101320 has 64 divisors (see below), whose sum is σ = 29438478000. Its totient is φ = 5185044480.

The previous prime is 13023101317. The next prime is 13023101321. The reversal of 13023101320 is 2310132031.

It can be written as a sum of positive squares in 8 ways, for example, as 6911927044 + 6111174276 = 83138^2 + 78174^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13023101294 and 13023101303.

It is not an unprimeable number, because it can be changed into a prime (13023101321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11871012 + ... + 11872108.

Almost surely, 213023101320 is an apocalyptic number.

13023101320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13023101320 is an abundant number, since it is smaller than the sum of its proper divisors (16415376680).

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

13023101320 is a wasteful number, since it uses less digits than its factorization.

13023101320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218 (or 2214 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13023101320 its reverse (2310132031), we get a palindrome (15333233351).

The spelling of 13023101320 in words is "thirteen billion, twenty-three million, one hundred one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 449 661 898 1097 1322 1796 2194 2245 2644 3305 3592 4388 4490 5288 5485 6610 8776 8980 10970 13220 17960 21940 26440 43880 296789 492553 593578 725117 985106 1187156 1450234 1483945 1970212 2374312 2462765 2900468 2967890 3625585 3940424 4925530 5800936 5935780 7251170 9851060 11871560 14502340 19702120 29004680 325577533 651155066 1302310132 1627887665 2604620264 3255775330 6511550660 13023101320