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13231030302320 = 245165387878779
BaseRepresentation
bin1100000010001001011011…
…0111000111011001110000
31201211212121020202220020012
43000202112313013121300
53213234122224133240
644050130145434052
72533624156643165
oct300422667073160
951755536686205
1013231030302320
114241280745346
12159831933b928
1374c8b095930c
1433a55730a06c
1517e281deeb65
hexc0896dc7670

13231030302320 has 20 divisors (see below), whose sum is σ = 30762145453080. Its totient is φ = 5292412120896.

The previous prime is 13231030302319. The next prime is 13231030302353. The reversal of 13231030302320 is 2320303013231.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82693939310 + ... + 82693939469.

It is an arithmetic number, because the mean of its divisors is an integer number (1538107272654).

Almost surely, 213231030302320 is an apocalyptic number.

13231030302320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13231030302320 is an abundant number, since it is smaller than the sum of its proper divisors (17531115150760).

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

13231030302320 is a wasteful number, since it uses less digits than its factorization.

13231030302320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165387878792 (or 165387878786 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 13231030302320 its reverse (2320303013231), we get a palindrome (15551333315551).

The spelling of 13231030302320 in words is "thirteen trillion, two hundred thirty-one billion, thirty million, three hundred two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 165387878779 330775757558 661551515116 826939393895 1323103030232 1653878787790 2646206060464 3307757575580 6615515151160 13231030302320