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20310234442031 = 671261324033761
BaseRepresentation
bin1001001111000110110000…
…10011110010100100101111
32122220122021011022001112102
410213203120103302210233
510130230330004121111
6111110220510525315
74164236354202542
oct447433023624457
978818234261472
1020310234442031
116520581946096
12234031450683b
13b44329555bb1
1450304070c859
152534b0cb213b
hex1278d84f292f

20310234442031 has 8 divisors (see below), whose sum is σ = 20615007423024. Its totient is φ = 20005509553920.

The previous prime is 20310234442027. The next prime is 20310234442193. The reversal of 20310234442031 is 13024443201302.

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 20310234442031 - 22 = 20310234442027 is a prime.

It is a super-2 number, since 2×203102344420312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20310234441985 and 20310234442003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310234442331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11171810 + ... + 12861951.

It is an arithmetic number, because the mean of its divisors is an integer number (2576875927878).

Almost surely, 220310234442031 is an apocalyptic number.

20310234442031 is a deficient number, since it is larger than the sum of its proper divisors (304772980993).

20310234442031 is a wasteful number, since it uses less digits than its factorization.

20310234442031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24046441.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 20310234442031 its reverse (13024443201302), we get a palindrome (33334677643333).

The spelling of 20310234442031 in words is "twenty trillion, three hundred ten billion, two hundred thirty-four million, four hundred forty-two thousand, thirty-one".

Divisors: 1 67 12613 845071 24033761 1610261987 303137827493 20310234442031