Base | Representation |
---|---|
bin | 10010111111111111… |
… | …101011100101010110 |
3 | 1221122210002201222010 |
4 | 102333333223211112 |
5 | 313240124323110 |
6 | 13212212245050 |
7 | 1321361506161 |
oct | 227777534526 |
9 | 57583081863 |
10 | 20401011030 |
11 | 87199255a4 |
12 | 3b54310786 |
13 | 1c017b147a |
14 | db7670ad8 |
15 | 7e607e020 |
hex | 4bffeb956 |
20401011030 has 32 divisors (see below), whose sum is σ = 50541861888. Its totient is φ = 5264776800.
The previous prime is 20401011023. The next prime is 20401011077. The reversal of 20401011030 is 3011010402.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 20401010997 and 20401011015.
It is a congruent number.
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, 10967356 + ... + 10969215.
It is an arithmetic number, because the mean of its divisors is an integer number (1579433184).
Almost surely, 220401011030 is an apocalyptic number.
20401011030 is an abundant number, since it is smaller than the sum of its proper divisors (30140850858).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20401011030 is a wasteful number, since it uses less digits than its factorization.
20401011030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21936612.
The product of its (nonzero) digits is 24, while the sum is 12.
Adding to 20401011030 its reverse (3011010402), we get a palindrome (23412021432).
The spelling of 20401011030 in words is "twenty billion, four hundred one million, eleven thousand, thirty".
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