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13320131321320 = 2355471621375559
BaseRepresentation
bin1100000111010101010110…
…1100100001110111101000
31202011101120212001122020221
43001311111230201313220
53221214112104240240
644155103413455424
72543230162053655
oct301652554416750
952141525048227
1013320131321320
11427604396a72a
1215b1645041574
13758110450975
143409aaa74c2c
151817493a1a4a
hexc1d55b21de8

13320131321320 has 64 divisors (see below), whose sum is σ = 30043688342400. Its totient is φ = 5315016994560.

The previous prime is 13320131321243. The next prime is 13320131321339. The reversal of 13320131321320 is 2312313102331.

13320131321320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35279701 + ... + 35655259.

It is an arithmetic number, because the mean of its divisors is an integer number (469432630350).

Almost surely, 213320131321320 is an apocalyptic number.

13320131321320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13320131321320 is an abundant number, since it is smaller than the sum of its proper divisors (16723557021080).

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

13320131321320 is a wasteful number, since it uses less digits than its factorization.

13320131321320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377738 (or 377734 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 13320131321320 its reverse (2312313102331), we get a palindrome (15632444423651).

The spelling of 13320131321320 in words is "thirteen trillion, three hundred twenty billion, one hundred thirty-one million, three hundred twenty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 547 1094 1621 2188 2735 3242 4376 5470 6484 8105 10940 12968 16210 21880 32420 64840 375559 751118 886687 1502236 1773374 1877795 3004472 3546748 3755590 4433435 7093496 7511180 8866870 15022360 17733740 35467480 205430773 410861546 608781139 821723092 1027153865 1217562278 1643446184 2054307730 2435124556 3043905695 4108615460 4870249112 6087811390 8217230920 12175622780 24351245560 333003283033 666006566066 1332013132132 1665016415165 2664026264264 3330032830330 6660065660660 13320131321320