Base | Representation |
---|---|
bin | 10010111010000110… |
… | …000010001011000000 |
3 | 1221101212211010100212 |
4 | 102322012002023000 |
5 | 313034303404440 |
6 | 13154314333252 |
7 | 1316050156424 |
oct | 227206021300 |
9 | 57355733325 |
10 | 20302013120 |
11 | 8678a58a44 |
12 | 3b2712a228 |
13 | 1bb712bb1c |
14 | da8460b84 |
15 | 7dc526465 |
hex | 4ba1822c0 |
20302013120 has 112 divisors (see below), whose sum is σ = 49669586208. Its totient is φ = 7899709440.
The previous prime is 20302013113. The next prime is 20302013159. The reversal of 20302013120 is 2131020302.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 20302013095 and 20302013104.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3533450 + ... + 3539190.
Almost surely, 220302013120 is an apocalyptic number.
20302013120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 20302013120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24834793104).
20302013120 is an abundant number, since it is smaller than the sum of its proper divisors (29367573088).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20302013120 is a wasteful number, since it uses less digits than its factorization.
20302013120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6058 (or 6048 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 14.
Adding to 20302013120 its reverse (2131020302), we get a palindrome (22433033422).
The spelling of 20302013120 in words is "twenty billion, three hundred two million, thirteen thousand, one hundred twenty".
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