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11912030 = 251391631
BaseRepresentation
bin101101011100…
…001101011110
3211102012020022
4231130031132
511022141110
61103152142
7203151644
oct55341536
924365208
1011912030
1167a6759
123ba5652
132610c50
141821194
1510a4755
hexb5c35e

11912030 has 16 divisors (see below), whose sum is σ = 23091264. Its totient is φ = 4398240.

The previous prime is 11911987. The next prime is 11912051. The reversal of 11912030 is 3021911.

It is a happy number.

11912030 is nontrivially palindromic in base 4.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45686 + ... + 45945.

It is an arithmetic number, because the mean of its divisors is an integer number (1443204).

Almost surely, 211912030 is an apocalyptic number.

11912030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11912030 is a deficient number, since it is larger than the sum of its proper divisors (11179234).

11912030 is a wasteful number, since it uses less digits than its factorization.

11912030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91651.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 11912030 is about 3451.3808830670. The cubic root of 11912030 is about 228.3820285556.

Adding to 11912030 its reverse (3021911), we get a palindrome (14933941).

The spelling of 11912030 in words is "eleven million, nine hundred twelve thousand, thirty".

Divisors: 1 2 5 10 13 26 65 130 91631 183262 458155 916310 1191203 2382406 5956015 11912030