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13131000013300 = 22521361165586381
BaseRepresentation
bin1011111100010100110010…
…0101110110000111110100
31201111022101222010201020221
42333011030211312013310
53210114242000411200
643532144221304124
72523453264343411
oct277051445660764
951438358121227
1013131000013300
11420290a2016a4
121580a61405044
1374332baa31a0
14335788243108
1517b87a1d091a
hexbf14c9761f4

13131000013300 has 72 divisors (see below), whose sum is σ = 31189188567992. Its totient is φ = 4768887744000.

The previous prime is 13131000013273. The next prime is 13131000013301. The reversal of 13131000013300 is 331000013131.

It can be written as a sum of positive squares in 12 ways, for example, as 7015993107984 + 6115006905316 = 2648772^2 + 2472854^2 .

It is a super-2 number, since 2×131310000133002 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131000013301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82713891 + ... + 82872490.

Almost surely, 213131000013300 is an apocalyptic number.

13131000013300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13131000013300 is an abundant number, since it is smaller than the sum of its proper divisors (18058188554692).

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

13131000013300 is a wasteful number, since it uses less digits than its factorization.

13131000013300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165586469 (or 165586462 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 16.

Adding to 13131000013300 its reverse (331000013131), we get a palindrome (13462000026431).

The spelling of 13131000013300 in words is "thirteen trillion, one hundred thirty-one billion, thirteen thousand, three hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 61 65 100 122 130 244 260 305 325 610 650 793 1220 1300 1525 1586 3050 3172 3965 6100 7930 15860 19825 39650 79300 165586381 331172762 662345524 827931905 1655863810 2152622953 3311727620 4139659525 4305245906 8279319050 8610491812 10100769241 10763114765 16558638100 20201538482 21526229530 40403076964 43052459060 50503846205 53815573825 101007692410 107631147650 131310000133 202015384820 215262295300 252519231025 262620000266 505038462050 525240000532 656550000665 1010076924100 1313100001330 2626200002660 3282750003325 6565500006650 13131000013300