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11831029 = 716310369
BaseRepresentation
bin101101001000…
…011011110101
3211021002010021
4231020123311
511012043104
61101325141
7202363540
oct55103365
924232107
1011831029
116750911
123b667b1
1325b3112
1417dd857
15108a754
hexb486f5

11831029 has 8 divisors (see below), whose sum is σ = 13605440. Its totient is φ = 10077696.

The previous prime is 11831023. The next prime is 11831033. The reversal of 11831029 is 92013811.

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

It is a 9-Lehmer number, since φ(11831029) divides (11831029-1)9.

It is a cyclic number.

It is not a de Polignac number, because 11831029 - 23 = 11831021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11830994 and 11831012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11831021) 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, 4044 + ... + 6325.

It is an arithmetic number, because the mean of its divisors is an integer number (1700680).

Almost surely, 211831029 is an apocalyptic number.

It is an amenable number.

11831029 is a deficient number, since it is larger than the sum of its proper divisors (1774411).

11831029 is a wasteful number, since it uses less digits than its factorization.

11831029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10539.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 11831029 is about 3439.6262878400. The cubic root of 11831029 is about 227.8631899568.

The spelling of 11831029 in words is "eleven million, eight hundred thirty-one thousand, twenty-nine".

Divisors: 1 7 163 1141 10369 72583 1690147 11831029