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123203030033 = 188965221297
BaseRepresentation
bin111001010111101111…
…0010000110000010001
3102210000020020101200102
41302233132100300101
54004304433430113
6132333152302145
711621041322246
oct1625736206021
9383006211612
10123203030033
1148282997a86
121ba64541955
13b805977105
145d6a8bd5cd
1533112a1758
hex1caf790c11

123203030033 has 4 divisors (see below), whose sum is σ = 123268253220. Its totient is φ = 123137806848.

The previous prime is 123203030029. The next prime is 123203030047. The reversal of 123203030033 is 330030302321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 83423924224 + 39779105809 = 288832^2 + 199447^2 .

It is a cyclic number.

It is not a de Polignac number, because 123203030033 - 22 = 123203030029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123203029987 and 123203030014.

It is not an unprimeable number, because it can be changed into a prime (123203030023) 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, 32608760 + ... + 32612537.

It is an arithmetic number, because the mean of its divisors is an integer number (30817063305).

Almost surely, 2123203030033 is an apocalyptic number.

It is an amenable number.

123203030033 is a deficient number, since it is larger than the sum of its proper divisors (65223187).

123203030033 is an equidigital number, since it uses as much as digits as its factorization.

123203030033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65223186.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 123203030033 its reverse (330030302321), we get a palindrome (453233332354).

The spelling of 123203030033 in words is "one hundred twenty-three billion, two hundred three million, thirty thousand, thirty-three".

Divisors: 1 1889 65221297 123203030033