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13130412303220 = 225656520615161
BaseRepresentation
bin1011111100010010100110…
…0011111010001101110100
31201111020220000020221120221
42333010221203322031310
53210112041022200340
643532010024504124
72523432600032062
oct277045143721564
951436800227527
1013130412303220
114202638488393
12158091861b044
137432670bb544
14335730179032
1517b8437de44a
hexbf1298fa374

13130412303220 has 12 divisors (see below), whose sum is σ = 27573865836804. Its totient is φ = 5252164921280.

The previous prime is 13130412303209. The next prime is 13130412303221. The reversal of 13130412303220 is 2230321403131.

It can be written as a sum of positive squares in 2 ways, for example, as 8368048846564 + 4762363456656 = 2892758^2 + 2182284^2 .

It is a super-2 number, since 2×131304123032202 (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 (13130412303221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328260307561 + ... + 328260307600.

It is an arithmetic number, because the mean of its divisors is an integer number (2297822153067).

Almost surely, 213130412303220 is an apocalyptic number.

13130412303220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13130412303220 is an abundant number, since it is smaller than the sum of its proper divisors (14443453533584).

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

13130412303220 is a wasteful number, since it uses less digits than its factorization.

13130412303220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656520615170 (or 656520615168 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 13130412303220 its reverse (2230321403131), we get a palindrome (15360733706351).

The spelling of 13130412303220 in words is "thirteen trillion, one hundred thirty billion, four hundred twelve million, three hundred three thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 656520615161 1313041230322 2626082460644 3282603075805 6565206151610 13130412303220