Search a number
-
+
30023000041 = 285110530691
BaseRepresentation
bin11011111101100000…
…101001111111101001
32212111100120102111111
4123331200221333221
5442441342000131
621443053030321
72111666201236
oct337540517751
985440512444
1030023000041
1111807223331
12599a7853a1
132aa6088ba8
14164b51478d
15baab6dab1
hex6fd829fe9

30023000041 has 4 divisors (see below), whose sum is σ = 30033533584. Its totient is φ = 30012466500.

The previous prime is 30023000023. The next prime is 30023000089. The reversal of 30023000041 is 14000032003.

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: 14000032003 = 37549372847.

It is a cyclic number.

It is not a de Polignac number, because 30023000041 - 25 = 30023000009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30022999985 and 30023000030.

It is not an unprimeable number, because it can be changed into a prime (30023010041) 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, 5262495 + ... + 5268196.

It is an arithmetic number, because the mean of its divisors is an integer number (7508383396).

Almost surely, 230023000041 is an apocalyptic number.

It is an amenable number.

30023000041 is a deficient number, since it is larger than the sum of its proper divisors (10533543).

30023000041 is a wasteful number, since it uses less digits than its factorization.

30023000041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10533542.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 30023000041 its reverse (14000032003), we get a palindrome (44023032044).

The spelling of 30023000041 in words is "thirty billion, twenty-three million, forty-one", and thus it is an aban number and an uban number.

Divisors: 1 2851 10530691 30023000041