Base | Representation |
---|---|
bin | 10010111010100100… |
… | …111101101001000110 |
3 | 1221102110002001022211 |
4 | 102322210331221012 |
5 | 313043342333110 |
6 | 13155204214034 |
7 | 1316206115563 |
oct | 227244755106 |
9 | 57373061284 |
10 | 20310121030 |
11 | 86825965a1 |
12 | 3b2999a31a |
13 | 1bb8a0a3c4 |
14 | da957186a |
15 | 7dd0c898a |
hex | 4ba93da46 |
20310121030 has 16 divisors (see below), whose sum is σ = 37546278480. Its totient is φ = 7904479392.
The previous prime is 20310121021. The next prime is 20310121033. The reversal of 20310121030 is 3012101302.
It is a self number, because there is not a number n which added to its sum of digits gives 20310121030.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20310121033) 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, 27445740 + ... + 27446479.
It is an arithmetic number, because the mean of its divisors is an integer number (2346642405).
Almost surely, 220310121030 is an apocalyptic number.
20310121030 is a deficient number, since it is larger than the sum of its proper divisors (17236157450).
20310121030 is a wasteful number, since it uses less digits than its factorization.
20310121030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 54892263.
The product of its (nonzero) digits is 36, while the sum is 13.
Adding to 20310121030 its reverse (3012101302), we get a palindrome (23322222332).
The spelling of 20310121030 in words is "twenty billion, three hundred ten million, one hundred twenty-one thousand, thirty".
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