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11072165 = 513170341
BaseRepresentation
bin101010001111…
…001010100101
3202211112011012
4222033022211
510313302130
61033152005
7163053236
oct52171245
922745135
1011072165
116282755
12385b605
1323a88a0
14168308d
15e8a995
hexa8f2a5

11072165 has 8 divisors (see below), whose sum is σ = 14308728. Its totient is φ = 8176320.

The previous prime is 11072143. The next prime is 11072167. The reversal of 11072165 is 56127011.

11072165 is digitally balanced in base 2, 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 36481 + 11035684 = 191^2 + 3322^2 .

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

It is not a de Polignac number, because 11072165 - 216 = 11006629 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 11072165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11072167) 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, 85106 + ... + 85235.

It is an arithmetic number, because the mean of its divisors is an integer number (1788591).

Almost surely, 211072165 is an apocalyptic number.

It is an amenable number.

11072165 is a deficient number, since it is larger than the sum of its proper divisors (3236563).

11072165 is a wasteful number, since it uses less digits than its factorization.

11072165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170359.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 11072165 is about 3327.4862884766. The cubic root of 11072165 is about 222.8832933802.

Adding to 11072165 its reverse (56127011), we get a palindrome (67199176).

The spelling of 11072165 in words is "eleven million, seventy-two thousand, one hundred sixty-five".

Divisors: 1 5 13 65 170341 851705 2214433 11072165