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11380161 = 3131032833
BaseRepresentation
bin101011011010…
…010111000001
3210102011122110
4223122113001
510403131121
61043525533
7165505212
oct53322701
923364573
1011380161
1164730a1
1239898a9
132485b30
141723409
15eebd76
hexada5c1

11380161 has 16 divisors (see below), whose sum is σ = 16505216. Its totient is φ = 6932736.

The previous prime is 11380141. The next prime is 11380181. The reversal of 11380161 is 16108311.

11380161 is digitally balanced in base 2, 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 (11380141) and next prime (11380181).

It is not a de Polignac number, because 11380161 - 211 = 11378113 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11380121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2601 + ... + 5433.

It is an arithmetic number, because the mean of its divisors is an integer number (1031576).

Almost surely, 211380161 is an apocalyptic number.

It is an amenable number.

11380161 is a deficient number, since it is larger than the sum of its proper divisors (5125055).

11380161 is a wasteful number, since it uses less digits than its factorization.

11380161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2952.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 11380161 is about 3373.4494215862. The cubic root of 11380161 is about 224.9310801258.

Adding to 11380161 its reverse (16108311), we get a palindrome (27488472).

The spelling of 11380161 in words is "eleven million, three hundred eighty thousand, one hundred sixty-one".

Divisors: 1 3 13 39 103 309 1339 2833 4017 8499 36829 110487 291799 875397 3793387 11380161