Search a number
-
+
13131111203300 = 22521117117556949
BaseRepresentation
bin1011111100010101001100…
…1110000000000111100100
31201111022200201100202021002
42333011103032000013210
53210120003432001200
643532203232412432
72523456114422456
oct277052316000744
951438621322232
1013131111203300
114202966a46362
121580a926a7118
13743348b3409c
14335798d082d6
1517b884d45bd5
hexbf1533801e4

13131111203300 has 36 divisors (see below), whose sum is σ = 28520021411700. Its totient is φ = 5247742158720.

The previous prime is 13131111203291. The next prime is 13131111203459. The reversal of 13131111203300 is 330211113131.

It can be written as a sum of positive squares in 6 ways, for example, as 5112835500964 + 8018275702336 = 2261158^2 + 2831656^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58666775 + ... + 58890174.

Almost surely, 213131111203300 is an apocalyptic number.

13131111203300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13131111203300 is an abundant number, since it is smaller than the sum of its proper divisors (15388910208400).

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

13131111203300 is a wasteful number, since it uses less digits than its factorization.

13131111203300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117558080 (or 117558073 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 13131111203300 its reverse (330211113131), we get a palindrome (13461322316431).

The spelling of 13131111203300 in words is "thirteen trillion, one hundred thirty-one billion, one hundred eleven million, two hundred three thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 1117 2234 4468 5585 11170 22340 27925 55850 111700 117556949 235113898 470227796 587784745 1175569490 2351138980 2938923725 5877847450 11755694900 131311112033 262622224066 525244448132 656555560165 1313111120330 2626222240660 3282777800825 6565555601650 13131111203300