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11002231 = 71831867
BaseRepresentation
bin101001111110…
…000101110111
3202200222020001
4221332011313
510304032411
61031452131
7162342322
oct51760567
922628201
1011002231
116235159
123827047
132382ac6
1416657b9
15e74dc1
hexa7e177

11002231 has 8 divisors (see below), whose sum is σ = 11297664. Its totient is φ = 10710840.

The previous prime is 11002219. The next prime is 11002249. The reversal of 11002231 is 13220011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11002231 - 29 = 11001719 is a prime.

It is a super-2 number, since 2×110022312 = 242098173954722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4960 + ... + 6826.

It is an arithmetic number, because the mean of its divisors is an integer number (1412208).

Almost surely, 211002231 is an apocalyptic number.

11002231 is a deficient number, since it is larger than the sum of its proper divisors (295433).

11002231 is an equidigital number, since it uses as much as digits as its factorization.

11002231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 11002231 is about 3316.9611092082. The cubic root of 11002231 is about 222.4130434938.

Adding to 11002231 its reverse (13220011), we get a palindrome (24222242).

The spelling of 11002231 in words is "eleven million, two thousand, two hundred thirty-one".

Divisors: 1 71 83 1867 5893 132557 154961 11002231