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11830361 = 13786353
BaseRepresentation
bin101101001000…
…010001011001
3211021001012112
4231020101121
511012032421
61101322105
7202361564
oct55102131
924231175
1011830361
116750364
123b66335
1325b2a1a
1417dd4db
15108a45b
hexb48459

11830361 has 4 divisors (see below), whose sum is σ = 11916852. Its totient is φ = 11743872.

The previous prime is 11830339. The next prime is 11830363. The reversal of 11830361 is 16303811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16303811 = 33434877.

It can be written as a sum of positive squares in 2 ways, for example, as 9486400 + 2343961 = 3080^2 + 1531^2 .

It is a cyclic number.

It is not a de Polignac number, because 11830361 - 26 = 11830297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11830363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43040 + ... + 43313.

It is an arithmetic number, because the mean of its divisors is an integer number (2979213).

Almost surely, 211830361 is an apocalyptic number.

It is an amenable number.

11830361 is a deficient number, since it is larger than the sum of its proper divisors (86491).

11830361 is an equidigital number, since it uses as much as digits as its factorization.

11830361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86490.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 11830361 is about 3439.5291828970. The cubic root of 11830361 is about 227.8589013618.

The spelling of 11830361 in words is "eleven million, eight hundred thirty thousand, three hundred sixty-one".

Divisors: 1 137 86353 11830361