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11660769 = 324131601
BaseRepresentation
bin101100011110…
…110111100001
3210221102120100
4230132313201
510441121034
61053533013
7201054261
oct54366741
923842510
1011660769
1166449aa
123aa4169
132553783
1417977a1
151055099
hexb1ede1

11660769 has 12 divisors (see below), whose sum is σ = 17254692. Its totient is φ = 7584000.

The previous prime is 11660767. The next prime is 11660771. The reversal of 11660769 is 96706611.

11660769 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11660767) and next prime (11660771).

It can be written as a sum of positive squares in 2 ways, for example, as 5475600 + 6185169 = 2340^2 + 2487^2 .

It is not a de Polignac number, because 11660769 - 21 = 11660767 is a prime.

It is a super-2 number, since 2×116607692 = 271947067342722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11660767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15432 + ... + 16169.

It is an arithmetic number, because the mean of its divisors is an integer number (1437891).

Almost surely, 211660769 is an apocalyptic number.

It is an amenable number.

11660769 is a deficient number, since it is larger than the sum of its proper divisors (5593923).

11660769 is a wasteful number, since it uses less digits than its factorization.

11660769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31648 (or 31645 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 11660769 is about 3414.7868161863. The cubic root of 11660769 is about 226.7648466928.

The spelling of 11660769 in words is "eleven million, six hundred sixty thousand, seven hundred sixty-nine".

Divisors: 1 3 9 41 123 369 31601 94803 284409 1295641 3886923 11660769