Base | Representation |
---|---|
bin | 10010101001010011… |
… | …00000010100010010 |
3 | 221211121202211002212 |
4 | 21110221200110102 |
5 | 131000041213020 |
6 | 4333143112122 |
7 | 503026311650 |
oct | 112451402422 |
9 | 27747684085 |
10 | 10010101010 |
11 | 4277494058 |
12 | 1b34442642 |
13 | c36b15cc0 |
14 | 6ad631dd0 |
15 | 3d8c05cc5 |
hex | 254a60512 |
10010101010 has 32 divisors (see below), whose sum is σ = 22176225792. Its totient is φ = 3168031680.
The previous prime is 10010100977. The next prime is 10010101019. The reversal of 10010101010 is 1010101001.
It is a Harshad number since it is a multiple of its sum of digits (5).
10010101010 is a modest number, since divided by 101010 gives 10010 as remainder.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 10010100985 and 10010101003.
It is not an unprimeable number, because it can be changed into a prime (10010101019) 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, 5499146 + ... + 5500965.
It is an arithmetic number, because the mean of its divisors is an integer number (693007056).
Almost surely, 210010101010 is an apocalyptic number.
10010101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
10010101010 is an abundant number, since it is smaller than the sum of its proper divisors (12166124782).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
10010101010 is a wasteful number, since it uses less digits than its factorization.
10010101010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11000138.
The product of its (nonzero) digits is 1, while the sum is 5.
Adding to 10010101010 its reverse (1010101001), we get a palindrome (11020202011).
Subtracting from 10010101010 its reverse (1010101001), we obtain a palindrome (9000000009).
The spelling of 10010101010 in words is "ten billion, ten million, one hundred one thousand, ten".
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