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11000231 = 11290911
BaseRepresentation
bin101001111101…
…100110100111
3202200212110222
4221331212213
510304001411
61031434555
7162333434
oct51754647
922625428
1011000231
116233700
123825a5b
132381c18
141664b8b
15e744db
hexa7d9a7

11000231 has 6 divisors (see below), whose sum is σ = 12091296. Its totient is φ = 10000100.

The previous prime is 11000189. The next prime is 11000273. The reversal of 11000231 is 13200011.

It is an interprime number because it is at equal distance from previous prime (11000189) and next prime (11000273).

It is not a de Polignac number, because 11000231 - 218 = 10738087 is a prime.

It is a super-2 number, since 2×110002312 = 242010164106722, which contains 22 as substring.

It is a Duffinian number.

11000231 is a modest number, since divided by 231 gives 11 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000281) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45335 + ... + 45576.

It is an arithmetic number, because the mean of its divisors is an integer number (2015216).

Almost surely, 211000231 is an apocalyptic number.

11000231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11000231 is a deficient number, since it is larger than the sum of its proper divisors (1091065).

11000231 is an equidigital number, since it uses as much as digits as its factorization.

11000231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90933 (or 90922 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 11000231 is about 3316.6596147329. The cubic root of 11000231 is about 222.3995658321.

Adding to 11000231 its reverse (13200011), we get a palindrome (24200242).

The spelling of 11000231 in words is "eleven million, two hundred thirty-one", and thus it is an aban number.

Divisors: 1 11 121 90911 1000021 11000231