Search a number
-
+
123201343025 = 5217217052089
BaseRepresentation
bin111001010111101011…
…1110100111000110001
3102210000010001200112122
41302233113310320301
54004304020434100
6132333052204025
711621021064665
oct1625727647061
9383003050478
10123201343025
1148281a45562
121ba63a69615
13b805506297
145d6a5a08a5
15331106b985
hex1caf5f4e31

123201343025 has 18 divisors (see below), whose sum is σ = 162284740530. Its totient is φ = 92763358720.

The previous prime is 123201343003. The next prime is 123201343033. The reversal of 123201343025 is 520343102321.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 709742881 + 122491600144 = 26641^2 + 349988^2 .

It is not a de Polignac number, because 123201343025 - 28 = 123201342769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123201342985 and 123201343003.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8518820 + ... + 8533269.

Almost surely, 2123201343025 is an apocalyptic number.

It is an amenable number.

123201343025 is a deficient number, since it is larger than the sum of its proper divisors (39083397505).

123201343025 is a wasteful number, since it uses less digits than its factorization.

123201343025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17052133 (or 17052111 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 123201343025 its reverse (520343102321), we get a palindrome (643544445346).

The spelling of 123201343025 in words is "one hundred twenty-three billion, two hundred one million, three hundred forty-three thousand, twenty-five".

Divisors: 1 5 17 25 85 289 425 1445 7225 17052089 85260445 289885513 426302225 1449427565 4928053721 7247137825 24640268605 123201343025