Base | Representation |
---|---|
bin | 10010110100001000… |
… | …10010111010110101 |
3 | 222001221211110221020 |
4 | 21122010102322311 |
5 | 131141324310401 |
6 | 4350151411353 |
7 | 505212112020 |
oct | 113204227265 |
9 | 28057743836 |
10 | 10101010101 |
11 | 4313836436 |
12 | 1b5a983b59 |
13 | c4c8c5970 |
14 | 6bb7381b7 |
15 | 3e1bb1d36 |
hex | 25a112eb5 |
10101010101 has 64 divisors (see below), whose sum is σ = 17194308096. Its totient is φ = 5132160000.
The previous prime is 10101010079. The next prime is 10101010163.
10101010101 is nontrivially palindromic in base 10.
10101010101 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.
It is not a de Polignac number, because 10101010101 - 221 = 10098912949 is a prime.
It is an alternating number because its digits alternate between odd and even.
10101010101 is a strobogrammatic number because it is the same when read upside-down.
10101010101 is an undulating number in base 10.
10101010101 is a modest number, since divided by 1010101 gives 101 as remainder.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 10101010101.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10101010181) by changing a digit.
It is a nontrivial repunit in base 100.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1015251 + ... + 1025151.
It is an arithmetic number, because the mean of its divisors is an integer number (268661064).
Almost surely, 210101010101 is an apocalyptic number.
It is an amenable number.
10101010101 is a deficient number, since it is larger than the sum of its proper divisors (7093297995).
10101010101 is a wasteful number, since it uses less digits than its factorization.
10101010101 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10062.
The product of its (nonzero) digits is 1, while the sum is 6.
It can be divided in two parts, 101010 and 10101, that added together give a palindrome (111111).
The spelling of 10101010101 in words is "ten billion, one hundred one million, ten thousand, one hundred one".
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