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11871093 = 313793853
BaseRepresentation
bin101101010010…
…001101110101
3211100010002010
4231102031311
511014333333
61102234433
7202621413
oct55221565
924303063
1011871093
116778a23
123b85a19
1325c8420
1418102b3
151097563
hexb52375

11871093 has 16 divisors (see below), whose sum is σ = 17265920. Its totient is φ = 7210944.

The previous prime is 11871091. The next prime is 11871103. The reversal of 11871093 is 39017811.

It is not a de Polignac number, because 11871093 - 21 = 11871091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11871093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11871091) 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 15 ways as a sum of consecutive naturals, for example, 1155 + ... + 5007.

It is an arithmetic number, because the mean of its divisors is an integer number (1079120).

Almost surely, 211871093 is an apocalyptic number.

11871093 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11871093 is a deficient number, since it is larger than the sum of its proper divisors (5394827).

11871093 is a wasteful number, since it uses less digits than its factorization.

11871093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3948.

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

The square root of 11871093 is about 3445.4452542451. The cubic root of 11871093 is about 228.1201083082.

The spelling of 11871093 in words is "eleven million, eight hundred seventy-one thousand, ninety-three".

Divisors: 1 3 13 39 79 237 1027 3081 3853 11559 50089 150267 304387 913161 3957031 11871093