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11697745 = 513717077
BaseRepresentation
bin101100100111…
…111001010001
3211000022021211
4230213321101
510443311440
61054420121
7201300133
oct54477121
924008254
1011697745
11666a764
123b01641
132567557
1417a7053
151060eea
hexb27e51

11697745 has 8 divisors (see below), whose sum is σ = 14140584. Its totient is φ = 9289344.

The previous prime is 11697737. The next prime is 11697761. The reversal of 11697745 is 54779611.

11697745 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1245456 + 10452289 = 1116^2 + 3233^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11697745 - 23 = 11697737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11697698 and 11697707.

It is an unprimeable number.

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, 7854 + ... + 9223.

It is an arithmetic number, because the mean of its divisors is an integer number (1767573).

Almost surely, 211697745 is an apocalyptic number.

It is an amenable number.

11697745 is a deficient number, since it is larger than the sum of its proper divisors (2442839).

11697745 is a wasteful number, since it uses less digits than its factorization.

11697745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17219.

The product of its digits is 52920, while the sum is 40.

The square root of 11697745 is about 3420.1966317743. The cubic root of 11697745 is about 227.0042822974.

The spelling of 11697745 in words is "eleven million, six hundred ninety-seven thousand, seven hundred forty-five".

Divisors: 1 5 137 685 17077 85385 2339549 11697745