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11152423 = 13185133
BaseRepresentation
bin101010100010…
…110000100111
3202222121020201
4222202300213
510323334143
61035011331
7163536232
oct52426047
922877221
1011152423
116327a87
123899b47
132406289
1416a4419
15ea464d
hexaa2c27

11152423 has 4 divisors (see below), whose sum is σ = 11237688. Its totient is φ = 11067160.

The previous prime is 11152417. The next prime is 11152439. The reversal of 11152423 is 32425111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32425111 = 40979279.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11152423 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 11152423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11152483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42436 + ... + 42697.

It is an arithmetic number, because the mean of its divisors is an integer number (2809422).

Almost surely, 211152423 is an apocalyptic number.

11152423 is a deficient number, since it is larger than the sum of its proper divisors (85265).

11152423 is an equidigital number, since it uses as much as digits as its factorization.

11152423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85264.

The product of its digits is 240, while the sum is 19.

The square root of 11152423 is about 3339.5243673314. The cubic root of 11152423 is about 223.4205300460.

Adding to 11152423 its reverse (32425111), we get a palindrome (43577534).

The spelling of 11152423 in words is "eleven million, one hundred fifty-two thousand, four hundred twenty-three".

Divisors: 1 131 85133 11152423