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11913006 = 237893187
BaseRepresentation
bin101101011100…
…011100101110
3211102020120110
4231130130232
511022204011
61103200450
7203154540
oct55343456
924366513
1011913006
1167a7466
123ba6126
132611521
141821690
1510a4ba6
hexb5c72e

11913006 has 32 divisors (see below), whose sum is σ = 27544320. Its totient is φ = 3364416.

The previous prime is 11912993. The next prime is 11913007. The reversal of 11913006 is 60031911.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11913007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2145 + ... + 5331.

It is an arithmetic number, because the mean of its divisors is an integer number (860760).

Almost surely, 211913006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11913006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13772160).

11913006 is an abundant number, since it is smaller than the sum of its proper divisors (15631314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11913006 is a wasteful number, since it uses less digits than its factorization.

11913006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 11913006 is about 3451.5222728530. The cubic root of 11913006 is about 228.3882658013.

Adding to 11913006 its reverse (60031911), we get a palindrome (71944917).

The spelling of 11913006 in words is "eleven million, nine hundred thirteen thousand, six".

Divisors: 1 2 3 6 7 14 21 42 89 178 267 534 623 1246 1869 3187 3738 6374 9561 19122 22309 44618 66927 133854 283643 567286 850929 1701858 1985501 3971002 5956503 11913006