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425217 = 31310903
BaseRepresentation
bin1100111110100000001
3210121021210
41213310001
5102101332
613040333
73420462
oct1476401
9717253
10425217
11270521
121860a9
1311b710
14b0d69
1585ecc
hex67d01

425217 has 8 divisors (see below), whose sum is σ = 610624. Its totient is φ = 261648.

The previous prime is 425207. The next prime is 425233. The reversal of 425217 is 712524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 425217 - 28 = 424961 is a prime.

It is a Duffinian number.

425217 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 425193 and 425202.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 425217.

It is not an unprimeable number, because it can be changed into a prime (425207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5413 + ... + 5490.

It is an arithmetic number, because the mean of its divisors is an integer number (76328).

2425217 is an apocalyptic number.

It is an amenable number.

425217 is a deficient number, since it is larger than the sum of its proper divisors (185407).

425217 is a wasteful number, since it uses less digits than its factorization.

425217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10919.

The product of its digits is 560, while the sum is 21.

The square root of 425217 is about 652.0866506838. The cubic root of 425217 is about 75.1975237792.

The spelling of 425217 in words is "four hundred twenty-five thousand, two hundred seventeen".

Divisors: 1 3 13 39 10903 32709 141739 425217