Search a number
-
+
30202220023 = 231313140001
BaseRepresentation
bin11100001000001100…
…010100110111110111
32212221211210202002121
4130020030110313313
5443323232020043
621512534220411
72116303430413
oct341014246767
985854722077
1030202220023
1111899402a18
125a2a7b4707
132b04248a11
141667247d43
15bbb770ded
hex708314df7

30202220023 has 4 divisors (see below), whose sum is σ = 31515360048. Its totient is φ = 28889080000.

The previous prime is 30202220003. The next prime is 30202220099. The reversal of 30202220023 is 32002220203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32002220203 = 139177229939.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30202220023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30202219979 and 30202220006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30202220003) 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, 656569978 + ... + 656570023.

It is an arithmetic number, because the mean of its divisors is an integer number (7878840012).

Almost surely, 230202220023 is an apocalyptic number.

30202220023 is a deficient number, since it is larger than the sum of its proper divisors (1313140025).

30202220023 is a wasteful number, since it uses less digits than its factorization.

30202220023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313140024.

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 30202220023 its reverse (32002220203), we get a palindrome (62204440226).

The spelling of 30202220023 in words is "thirty billion, two hundred two million, two hundred twenty thousand, twenty-three".

Divisors: 1 23 1313140001 30202220023