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13230454100020 = 2252521262404881
BaseRepresentation
bin1100000010000111010010…
…0001000101000000110100
31201211211010002112210021021
43000201310201011000310
53213231432222200040
644045553043430524
72533603662211123
oct300416441050064
951754102483237
1013230454100020
114241005470aa3
121598198385444
1374c81b473601
1433a500999aba
1517e24b53324a
hexc0874845034

13230454100020 has 24 divisors (see below), whose sum is σ = 27794974720968. Its totient is φ = 5290082380800.

The previous prime is 13230454099921. The next prime is 13230454100029. The reversal of 13230454100020 is 2000145403231.

It can be written as a sum of positive squares in 4 ways, for example, as 1103079676176 + 12127374423844 = 1050276^2 + 3482438^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13230454100029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131152021 + ... + 131252860.

It is an arithmetic number, because the mean of its divisors is an integer number (1158123946707).

Almost surely, 213230454100020 is an apocalyptic number.

13230454100020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13230454100020 is an abundant number, since it is smaller than the sum of its proper divisors (14564520620948).

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

13230454100020 is a wasteful number, since it uses less digits than its factorization.

13230454100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262407411 (or 262407409 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 13230454100020 its reverse (2000145403231), we get a palindrome (15230599503251).

The spelling of 13230454100020 in words is "thirteen trillion, two hundred thirty billion, four hundred fifty-four million, one hundred thousand, twenty".

Divisors: 1 2 4 5 10 20 2521 5042 10084 12605 25210 50420 262404881 524809762 1049619524 1312024405 2624048810 5248097620 661522705001 1323045410002 2646090820004 3307613525005 6615227050010 13230454100020