Search a number
-
+
125013101 = 245950839
BaseRepresentation
bin1110111001110…
…00110001101101
322201020022201212
413130320301231
5224000404401
620223244205
73045410453
oct734706155
9281208655
10125013101
1164626214
1235a49665
131cb90965
14128629d3
15ae95dbb
hex7738c6d

125013101 has 4 divisors (see below), whose sum is σ = 125066400. Its totient is φ = 124959804.

The previous prime is 125013067. The next prime is 125013127. The reversal of 125013101 is 101310521.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-125013101 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 (125013151) 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, 22961 + ... + 27878.

It is an arithmetic number, because the mean of its divisors is an integer number (31266600).

Almost surely, 2125013101 is an apocalyptic number.

It is an amenable number.

125013101 is a deficient number, since it is larger than the sum of its proper divisors (53299).

125013101 is an equidigital number, since it uses as much as digits as its factorization.

125013101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53298.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 125013101 is about 11180.9257666796. The cubic root of 125013101 is about 500.0174673898.

Adding to 125013101 its reverse (101310521), we get a palindrome (226323622).

The spelling of 125013101 in words is "one hundred twenty-five million, thirteen thousand, one hundred one".

Divisors: 1 2459 50839 125013101