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340625 = 55109
BaseRepresentation
bin1010011001010010001
3122022020202
41103022101
541400000
611144545
72616035
oct1231221
9568222
10340625
11212a0a
12145155
13bc06c
148c1c5
156add5
hex53291

340625 has 12 divisors (see below), whose sum is σ = 429660. Its totient is φ = 270000.

The previous prime is 340619. The next prime is 340633. The reversal of 340625 is 526043.

It can be written as a sum of positive squares in 6 ways, for example, as 253009 + 87616 = 503^2 + 296^2 .

It is not a de Polignac number, because 340625 - 28 = 340369 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 340597 and 340606.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3071 + ... + 3179.

It is an arithmetic number, because the mean of its divisors is an integer number (35805).

2340625 is an apocalyptic number.

It is an amenable number.

340625 is a deficient number, since it is larger than the sum of its proper divisors (89035).

340625 is an frugal number, since it uses more digits than its factorization.

340625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 340625 is about 583.6308764964. The cubic root of 340625 is about 69.8380610312.

Adding to 340625 its reverse (526043), we get a palindrome (866668).

The spelling of 340625 in words is "three hundred forty thousand, six hundred twenty-five".

Divisors: 1 5 25 109 125 545 625 2725 3125 13625 68125 340625