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11248381 = 31362851
BaseRepresentation
bin101010111010…
…001011111101
3210011110212201
4222322023331
510334422011
61041031501
7164416054
oct52721375
923143781
1011248381
116393091
123925591
13243ab61
1416cb39b
15ec2cc1
hexaba2fd

11248381 has 4 divisors (see below), whose sum is σ = 11611264. Its totient is φ = 10885500.

The previous prime is 11248331. The next prime is 11248417. The reversal of 11248381 is 18384211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11248381 is a prime.

It is a super-2 number, since 2×112483812 = 253052150242322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11248301) 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, 181395 + ... + 181456.

It is an arithmetic number, because the mean of its divisors is an integer number (2902816).

Almost surely, 211248381 is an apocalyptic number.

It is an amenable number.

11248381 is a deficient number, since it is larger than the sum of its proper divisors (362883).

11248381 is an equidigital number, since it uses as much as digits as its factorization.

11248381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362882.

The product of its digits is 1536, while the sum is 28.

The square root of 11248381 is about 3353.8606112956. The cubic root of 11248381 is about 224.0594880799.

The spelling of 11248381 in words is "eleven million, two hundred forty-eight thousand, three hundred eighty-one".

Divisors: 1 31 362851 11248381