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10010101101010 = 251767786976289
BaseRepresentation
bin1001000110101010100010…
…0001010011000111010010
31022102221211011020100110121
42101222220201103013102
52303001141340213020
633142324342420454
72052130431315343
oct221525041230722
938387734210417
1010010101101010
11320a29512178a
12115803673172a
13577c43a8367a
142686c488c0ca
151255bbb21baa
hex91aa88531d2

10010101101010 has 32 divisors (see below), whose sum is σ = 19106255576880. Its totient is φ = 3762942124032.

The previous prime is 10010101100939. The next prime is 10010101101029. The reversal of 10010101101010 is 1010110101001.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 9517885201449 + 492215899561 = 3085107^2 + 701581^2 .

It is a super-2 number, since 2×100101011010102 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10010101100984 and 10010101101002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43373055 + ... + 43603234.

Almost surely, 210010101101010 is an apocalyptic number.

10010101101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10010101101010 is a deficient number, since it is larger than the sum of its proper divisors (9096154475870).

10010101101010 is a wasteful number, since it uses less digits than its factorization.

10010101101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86976990.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 10010101101010 its reverse (1010110101001), we get a palindrome (11020211202011).

The spelling of 10010101101010 in words is "ten trillion, ten billion, one hundred one million, one hundred one thousand, ten".

Divisors: 1 2 5 10 17 34 85 170 677 1354 3385 6770 11509 23018 57545 115090 86976289 173952578 434881445 869762890 1478596913 2957193826 7392984565 14785969130 58882947653 117765895306 294414738265 588829476530 1001010110101 2002020220202 5005050550505 10010101101010