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20310100313 = 113306758603
BaseRepresentation
bin10010111010100100…
…111000100101011001
31221102110000222220112
4102322210320211121
5313043341202223
613155203534105
71316206001306
oct227244704531
957373028815
1020310100313
118682581a78
123b2998a335
131bb8a00b49
14da95680ad
157dd0c2778
hex4ba938959

20310100313 has 8 divisors (see below), whose sum is σ = 20496866208. Its totient is φ = 20123457984.

The previous prime is 20310100303. The next prime is 20310100333. The reversal of 20310100313 is 31300101302.

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 20310100313 - 216 = 20310034777 is a prime.

It is a super-3 number, since 3×203101003133 (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20310100303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317270 + ... + 375872.

It is an arithmetic number, because the mean of its divisors is an integer number (2562108276).

Almost surely, 220310100313 is an apocalyptic number.

It is an amenable number.

20310100313 is a deficient number, since it is larger than the sum of its proper divisors (186765895).

20310100313 is a wasteful number, since it uses less digits than its factorization.

20310100313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61783.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 20310100313 its reverse (31300101302), we get a palindrome (51610201615).

The spelling of 20310100313 in words is "twenty billion, three hundred ten million, one hundred thousand, three hundred thirteen".

Divisors: 1 113 3067 58603 346571 6622139 179735401 20310100313