Search a number
-
+
349925 = 5213997
BaseRepresentation
bin1010101011011100101
3122210000012
41111123211
542144200
611300005
72655122
oct1253345
9583005
10349925
112199a4
1214a605
13c3374
1491749
156da35
hex556e5

349925 has 6 divisors (see below), whose sum is σ = 433938. Its totient is φ = 279920.

The previous prime is 349919. The next prime is 349927. The reversal of 349925 is 529943.

It can be written as a sum of positive squares in 3 ways, for example, as 20449 + 329476 = 143^2 + 574^2 .

It is a de Polignac number, because none of the positive numbers 2k-349925 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 349891 and 349900.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 349925.

It is not an unprimeable number, because it can be changed into a prime (349927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6974 + ... + 7023.

It is an arithmetic number, because the mean of its divisors is an integer number (72323).

2349925 is an apocalyptic number.

It is an amenable number.

349925 is a deficient number, since it is larger than the sum of its proper divisors (84013).

349925 is a wasteful number, since it uses less digits than its factorization.

349925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14007 (or 14002 counting only the distinct ones).

The product of its digits is 9720, while the sum is 32.

The square root of 349925 is about 591.5445883448. The cubic root of 349925 is about 70.4679531762.

The spelling of 349925 in words is "three hundred forty-nine thousand, nine hundred twenty-five".

Divisors: 1 5 25 13997 69985 349925