Base | Representation |
---|---|
bin | 10010101010100110… |
… | …00111101010111111 |
3 | 221212101022001120122 |
4 | 21111103013222333 |
5 | 131010334310421 |
6 | 4334213005155 |
7 | 503221115630 |
oct | 112523075277 |
9 | 27771261518 |
10 | 10021010111 |
11 | 4282665242 |
12 | 1b380237bb |
13 | c391655a8 |
14 | 6b0c71887 |
15 | 3d9b5d2ab |
hex | 2554c7abf |
10021010111 has 16 divisors (see below), whose sum is σ = 12331802880. Its totient is φ = 7947150720.
The previous prime is 10021010081. The next prime is 10021010119. The reversal of 10021010111 is 11101012001.
It is a happy number.
It is a cyclic number.
It is not a de Polignac number, because 10021010111 - 214 = 10020993727 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10021010119) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 706625 + ... + 720666.
It is an arithmetic number, because the mean of its divisors is an integer number (770737680).
Almost surely, 210021010111 is an apocalyptic number.
10021010111 is a deficient number, since it is larger than the sum of its proper divisors (2310792769).
10021010111 is a wasteful number, since it uses less digits than its factorization.
10021010111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1427374.
The product of its (nonzero) digits is 2, while the sum is 8.
Adding to 10021010111 its reverse (11101012001), we get a palindrome (21122022112).
The spelling of 10021010111 in words is "ten billion, twenty-one million, ten thousand, one hundred eleven".
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