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13775069 = 711178897
BaseRepresentation
bin110100100011…
…000011011101
3221220211211202
4310203003131
512011300234
61211125245
7225041360
oct64430335
927824752
1013775069
117859460
124743825
132b13c39
141b880d7
15132177e
hexd230dd

13775069 has 8 divisors (see below), whose sum is σ = 17174208. Its totient is φ = 10733760.

The previous prime is 13775059. The next prime is 13775107. The reversal of 13775069 is 96057731.

13775069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13775069 - 24 = 13775053 is a prime.

It is a super-2 number, since 2×137750692 = 379505051909522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13775009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89372 + ... + 89525.

It is an arithmetic number, because the mean of its divisors is an integer number (2146776).

Almost surely, 213775069 is an apocalyptic number.

It is an amenable number.

13775069 is a deficient number, since it is larger than the sum of its proper divisors (3399139).

13775069 is a wasteful number, since it uses less digits than its factorization.

13775069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178915.

The product of its (nonzero) digits is 39690, while the sum is 38.

The square root of 13775069 is about 3711.4780074790. The cubic root of 13775069 is about 239.7164997376.

It can be divided in two parts, 1377 and 5069, that added together give a palindrome (6446).

The spelling of 13775069 in words is "thirteen million, seven hundred seventy-five thousand, sixty-nine".

Divisors: 1 7 11 77 178897 1252279 1967867 13775069