Search a number
-
+
1030031113 = 1079626459
BaseRepresentation
bin111101011001010…
…000011100001001
32122210012000001111
4331121100130021
54102141443423
6250113050321
734345056106
oct7531203411
92583160044
101030031113
11489475691
12248b569a1
13135523387
149ab27aad
156066460d
hex3d650709

1030031113 has 4 divisors (see below), whose sum is σ = 1039657680. Its totient is φ = 1020404548.

The previous prime is 1030031081. The next prime is 1030031129. The reversal of 1030031113 is 3111300301.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3111300301 = 7143821131.

It is a cyclic number.

It is not a de Polignac number, because 1030031113 - 25 = 1030031081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030031093 and 1030031102.

It is not an unprimeable number, because it can be changed into a prime (1030031713) 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, 4813123 + ... + 4813336.

It is an arithmetic number, because the mean of its divisors is an integer number (259914420).

Almost surely, 21030031113 is an apocalyptic number.

It is an amenable number.

1030031113 is a deficient number, since it is larger than the sum of its proper divisors (9626567).

1030031113 is an equidigital number, since it uses as much as digits as its factorization.

1030031113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9626566.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 1030031113 is about 32094.0977907154. The cubic root of 1030031113 is about 1009.9118025785.

Adding to 1030031113 its reverse (3111300301), we get a palindrome (4141331414).

The spelling of 1030031113 in words is "one billion, thirty million, thirty-one thousand, one hundred thirteen".

Divisors: 1 107 9626459 1030031113