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1001022011 = 111941116819
BaseRepresentation
bin111011101010100…
…110001000111011
32120202121012001022
4323222212020323
54022230201021
6243155213055
733543355343
oct7352461073
92522535038
101001022011
11474061720
1223b2a718b
1312c507422
1496d35d23
155cd341ab
hex3baa623b

1001022011 has 16 divisors (see below), whose sum is σ = 1177545600. Its totient is φ = 841089600.

The previous prime is 1001022007. The next prime is 1001022047. The reversal of 1001022011 is 1102201001.

It is a cyclic number.

It is not a de Polignac number, because 1001022011 - 22 = 1001022007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1001022011.

It is not an unprimeable number, because it can be changed into a prime (1001022091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49841 + ... + 66978.

It is an arithmetic number, because the mean of its divisors is an integer number (73596600).

Almost surely, 21001022011 is an apocalyptic number.

1001022011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1001022011 is a deficient number, since it is larger than the sum of its proper divisors (176523589).

1001022011 is a wasteful number, since it uses less digits than its factorization.

1001022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116890.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1001022011 is about 31638.9318877866. The cubic root of 1001022011 is about 1000.3405543429.

Adding to 1001022011 its reverse (1102201001), we get a palindrome (2103223012).

The spelling of 1001022011 in words is "one billion, one million, twenty-two thousand, eleven".

Divisors: 1 11 19 41 209 451 779 8569 116819 1285009 2219561 4789579 24415171 52685369 91002001 1001022011