Search a number
-
+
125310230143 = 717901461449
BaseRepresentation
bin111010010110100010…
…0100101111001111111
3102222110002022020210221
41310231010211321333
54023113404331033
6133322225042211
712024206244640
oct1645504457177
9388402266727
10125310230143
11491643a367a
1220352186367
13ba803b6297
1460ca6c16c7
1533d628c12d
hex1d2d125e7f

125310230143 has 4 divisors (see below), whose sum is σ = 143211691600. Its totient is φ = 107408768688.

The previous prime is 125310230131. The next prime is 125310230161. The reversal of 125310230143 is 341032013521.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 125310230143 - 213 = 125310221951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125310230543) 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, 8950730718 + ... + 8950730731.

It is an arithmetic number, because the mean of its divisors is an integer number (35802922900).

Almost surely, 2125310230143 is an apocalyptic number.

125310230143 is a deficient number, since it is larger than the sum of its proper divisors (17901461457).

125310230143 is an equidigital number, since it uses as much as digits as its factorization.

125310230143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17901461456.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 125310230143 its reverse (341032013521), we get a palindrome (466342243664).

The spelling of 125310230143 in words is "one hundred twenty-five billion, three hundred ten million, two hundred thirty thousand, one hundred forty-three".

Divisors: 1 7 17901461449 125310230143