| Base | Representation |
|---|---|
| bin | 10010111010001011… |
| … | …000001100011011110 |
| 3 | 1221101222021120212100 |
| 4 | 102322023001203132 |
| 5 | 313040122240220 |
| 6 | 13154402345530 |
| 7 | 1316064245406 |
| oct | 227213014336 |
| 9 | 57358246770 |
| 10 | 20303321310 |
| 11 | 8679771898 |
| 12 | 3b2765b2a6 |
| 13 | 1bb74993bc |
| 14 | da86c1806 |
| 15 | 7dc6d3d90 |
| hex | 4ba2c18de |
20303321310 has 96 divisors (see below), whose sum is σ = 53741076480. Its totient is φ = 5316732864.
The previous prime is 20303321303. The next prime is 20303321317. The reversal of 20303321310 is 1312330302.
20303321310 is a `hidden beast` number, since 2 + 0 + 30 + 3 + 321 + 310 = 666.
It is an interprime number because it is at equal distance from previous prime (20303321303) and next prime (20303321317).
It is a super-2 number, since 2×203033213102 (a number of 21 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20303321317) 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 47 ways as a sum of consecutive naturals, for example, 7554787 + ... + 7557473.
It is an arithmetic number, because the mean of its divisors is an integer number (559802880).
Almost surely, 220303321310 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20303321310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26870538240).
20303321310 is an abundant number, since it is smaller than the sum of its proper divisors (33437755170).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20303321310 is a wasteful number, since it uses less digits than its factorization.
20303321310 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4182 (or 4179 counting only the distinct ones).
The product of its (nonzero) digits is 324, while the sum is 18.
Adding to 20303321310 its reverse (1312330302), we get a palindrome (21615651612).
The spelling of 20303321310 in words is "twenty billion, three hundred three million, three hundred twenty-one thousand, three hundred ten".
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