Base | Representation |
---|---|
bin | 10010101111111101… |
… | …111000001111010000 |
3 | 1220222001002210122220 |
4 | 102233331320033100 |
5 | 312212304244440 |
6 | 13125404501040 |
7 | 1311615024123 |
oct | 225775701720 |
9 | 56861083586 |
10 | 20132103120 |
11 | 85a1058058 |
12 | 3a9a24a780 |
13 | 1b8ab7b76c |
14 | d8da723ba |
15 | 7cc6628d0 |
hex | 4aff783d0 |
20132103120 has 160 divisors (see below), whose sum is σ = 66184335360. Its totient is φ = 5044838400.
The previous prime is 20132103107. The next prime is 20132103127. The reversal of 20132103120 is 2130123102.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 20132103120.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20132103127) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2856561 + ... + 2863599.
It is an arithmetic number, because the mean of its divisors is an integer number (413652096).
Almost surely, 220132103120 is an apocalyptic number.
20132103120 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 20132103120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33092167680).
20132103120 is an abundant number, since it is smaller than the sum of its proper divisors (46052232240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20132103120 is a wasteful number, since it uses less digits than its factorization.
20132103120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7773 (or 7767 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 20132103120 its reverse (2130123102), we get a palindrome (22262226222).
The spelling of 20132103120 in words is "twenty billion, one hundred thirty-two million, one hundred three thousand, one hundred twenty".
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