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234417 = 378139
BaseRepresentation
bin111001001110110001
3102220120010
4321032301
530000132
65005133
71664301
oct711661
9386503
10234417
11150137
12b37a9
1382911
1461601
15496cc
hex393b1

234417 has 4 divisors (see below), whose sum is σ = 312560. Its totient is φ = 156276.

The previous prime is 234383. The next prime is 234431. The reversal of 234417 is 714432.

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 not a de Polignac number, because 234417 - 28 = 234161 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234393 and 234402.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 234417.

It is not an unprimeable number, because it can be changed into a prime (234457) 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, 39067 + ... + 39072.

It is an arithmetic number, because the mean of its divisors is an integer number (78140).

234417 is a Friedman number, since it can be written as 42+3*(4+1)^7, using all its digits and the basic arithmetic operations.

2234417 is an apocalyptic number.

It is an amenable number.

234417 is a deficient number, since it is larger than the sum of its proper divisors (78143).

234417 is an equidigital number, since it uses as much as digits as its factorization.

234417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78142.

The product of its digits is 672, while the sum is 21.

The square root of 234417 is about 484.1662937463. The cubic root of 234417 is about 61.6589845150.

Adding to 234417 its reverse (714432), we get a palindrome (948849).

The spelling of 234417 in words is "two hundred thirty-four thousand, four hundred seventeen".

Divisors: 1 3 78139 234417