Base | Representation |
---|---|
bin | 10010110101010101… |
… | …10010010011101110 |
3 | 222002122211002212110 |
4 | 21122222302103232 |
5 | 131201420201032 |
6 | 4351151544450 |
7 | 505363635033 |
oct | 113252622356 |
9 | 28078732773 |
10 | 10111100142 |
11 | 43194a8210 |
12 | 1b6222b126 |
13 | c51a194c0 |
14 | 6bcc0338a |
15 | 3e2a067cc |
hex | 25aab24ee |
10111100142 has 64 divisors (see below), whose sum is σ = 23804202240. Its totient is φ = 2822726400.
The previous prime is 10111100137. The next prime is 10111100143. The reversal of 10111100142 is 24100111101.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10111100143) 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, 435709 + ... + 458327.
It is an arithmetic number, because the mean of its divisors is an integer number (371940660).
Almost surely, 210111100142 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 10111100142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11902101120).
10111100142 is an abundant number, since it is smaller than the sum of its proper divisors (13693102098).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10111100142 is a wasteful number, since it uses less digits than its factorization.
10111100142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23169.
The product of its (nonzero) digits is 8, while the sum is 12.
Adding to 10111100142 its reverse (24100111101), we get a palindrome (34211211243).
The spelling of 10111100142 in words is "ten billion, one hundred eleven million, one hundred thousand, one hundred forty-two".
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