Search a number
BaseRepresentation
bin101101001000…
…011010111011
3211021002001010
4231020122323
511012042341
61101325003
7202363425
oct55103273
924232033
1011830971
116750869
123b66763
1325b3099
1417dd815
15108a716
hexb486bb

11830971 has 8 divisors (see below), whose sum is σ = 15797824. Its totient is φ = 7875720.

The previous prime is 11830967. The next prime is 11830991. The reversal of 11830971 is 17903811.

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

It is not a de Polignac number, because 11830971 - 22 = 11830967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11830921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145 + ... + 4866.

It is an arithmetic number, because the mean of its divisors is an integer number (1974728).

Almost surely, 211830971 is an apocalyptic number.

11830971 is a deficient number, since it is larger than the sum of its proper divisors (3966853).

11830971 is an equidigital number, since it uses as much as digits as its factorization.

11830971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5801.

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 11830971 is about 3439.6178566812. The cubic root of 11830971 is about 227.8628176001.

The spelling of 11830971 in words is "eleven million, eight hundred thirty thousand, nine hundred seventy-one".

Divisors: 1 3 787 2361 5011 15033 3943657 11830971