Search a number
-
+
10125349 = 13778873
BaseRepresentation
bin100110101000…
…000000100101
3201001102100221
4212220000211
510043002344
61001004341
7152030653
oct46500045
921042327
1010125349
115796363
1234836b1
132136940
1414b7dd3
15d50184
hex9a8025

10125349 has 4 divisors (see below), whose sum is σ = 10904236. Its totient is φ = 9346464.

The previous prime is 10125343. The next prime is 10125389. The reversal of 10125349 is 94352101.

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 1464100 + 8661249 = 1210^2 + 2943^2 .

It is a cyclic number.

It is not a de Polignac number, because 10125349 - 23 = 10125341 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 (10125341) 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, 389424 + ... + 389449.

It is an arithmetic number, because the mean of its divisors is an integer number (2726059).

Almost surely, 210125349 is an apocalyptic number.

It is an amenable number.

10125349 is a deficient number, since it is larger than the sum of its proper divisors (778887).

10125349 is an equidigital number, since it uses as much as digits as its factorization.

10125349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778886.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 10125349 is about 3182.0353549262. The cubic root of 10125349 is about 216.3399211724.

The spelling of 10125349 in words is "ten million, one hundred twenty-five thousand, three hundred forty-nine".

Divisors: 1 13 778873 10125349