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11790031 = 111071821
BaseRepresentation
bin101100111110…
…011011001111
3211011222212211
4230332123033
511004240111
61100411251
7202133161
oct54763317
924158784
1011790031
116723030
123b46b27
13259a566
1417cc931
15107d521
hexb3e6cf

11790031 has 4 divisors (see below), whose sum is σ = 12861864. Its totient is φ = 10718200.

The previous prime is 11790017. The next prime is 11790043. The reversal of 11790031 is 13009711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11790031 - 213 = 11781839 is a prime.

It is a super-2 number, since 2×117900312 = 278009661961922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11789984 and 11790011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11793031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535900 + ... + 535921.

It is an arithmetic number, because the mean of its divisors is an integer number (3215466).

Almost surely, 211790031 is an apocalyptic number.

11790031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11790031 is a deficient number, since it is larger than the sum of its proper divisors (1071833).

11790031 is a wasteful number, since it uses less digits than its factorization.

11790031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071832.

The product of its (nonzero) digits is 189, while the sum is 22.

The square root of 11790031 is about 3433.6614568125. The cubic root of 11790031 is about 227.5996809885.

Adding to 11790031 its reverse (13009711), we get a palindrome (24799742).

The spelling of 11790031 in words is "eleven million, seven hundred ninety thousand, thirty-one".

Divisors: 1 11 1071821 11790031