[go: up one dir, main page]

Search a number
-
+
1115230423 = 3677303299
BaseRepresentation
bin100001001111001…
…0001000011010111
32212201111120112111
41002132101003113
54240444333143
6302355131451
736431205436
oct10236210327
92781446474
101115230423
1152257813a
122715a3b87
1314a084178
14a818511d
1567d9399d
hex427910d7

1115230423 has 4 divisors (see below), whose sum is σ = 1115537400. Its totient is φ = 1114923448.

The previous prime is 1115230421. The next prime is 1115230433. The reversal of 1115230423 is 3240325111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3240325111 = 4975765123.

It is a cyclic number.

It is not a de Polignac number, because 1115230423 - 21 = 1115230421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1115230394 and 1115230403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115230421) 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, 147973 + ... + 155326.

It is an arithmetic number, because the mean of its divisors is an integer number (278884350).

Almost surely, 21115230423 is an apocalyptic number.

1115230423 is a deficient number, since it is larger than the sum of its proper divisors (306977).

1115230423 is an equidigital number, since it uses as much as digits as its factorization.

1115230423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306976.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1115230423 is about 33395.0658481159. The cubic root of 1115230423 is about 1037.0225561078.

Adding to 1115230423 its reverse (3240325111), we get a palindrome (4355555534).

The spelling of 1115230423 in words is "one billion, one hundred fifteen million, two hundred thirty thousand, four hundred twenty-three".

Divisors: 1 3677 303299 1115230423