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20031310302013 = 97307672665647
BaseRepresentation
bin1001000110111111001110…
…01000101000101100111101
32121220222022110022122111001
410203133213020220230331
510111143110414131023
6110334131254330301
74135133354136133
oct443374710505475
977828273278431
1020031310302013
11642325a4a539a
1222b6251359991
13b23c37c7cc6a
144d3740709753
1524b0d8a376ad
hex1237e7228b3d

20031310302013 has 8 divisors (see below), whose sum is σ = 20303739919232. Its totient is φ = 19760226016896.

The previous prime is 20031310302007. The next prime is 20031310302049. The reversal of 20031310302013 is 31020301313002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20031310302013 - 217 = 20031310170941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031310302413) 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, 336303045 + ... + 336362602.

It is an arithmetic number, because the mean of its divisors is an integer number (2537967489904).

Almost surely, 220031310302013 is an apocalyptic number.

It is an amenable number.

20031310302013 is a deficient number, since it is larger than the sum of its proper divisors (272429617219).

20031310302013 is an equidigital number, since it uses as much as digits as its factorization.

20031310302013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672666051.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20031310302013 its reverse (31020301313002), we get a palindrome (51051611615015).

The spelling of 20031310302013 in words is "twenty trillion, thirty-one billion, three hundred ten million, three hundred two thousand, thirteen".

Divisors: 1 97 307 29779 672665647 65248567759 206508353629 20031310302013