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425238 = 231117379
BaseRepresentation
bin1100111110100010110
3210121022120
41213310112
5102101423
613040410
73420522
oct1476426
9717276
10425238
11270540
12186106
1311b728
14b0d82
1585ee3
hex67d16

425238 has 32 divisors (see below), whose sum is σ = 984960. Its totient is φ = 120960.

The previous prime is 425237. The next prime is 425251. The reversal of 425238 is 832524.

It is a d-powerful number, because it can be written as 4 + 214 + 217 + 56 + 32 + 86 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425233) 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 15 ways as a sum of consecutive naturals, for example, 933 + ... + 1311.

It is an arithmetic number, because the mean of its divisors is an integer number (30780).

2425238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492480).

425238 is an abundant number, since it is smaller than the sum of its proper divisors (559722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

425238 is a wasteful number, since it uses less digits than its factorization.

425238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412.

The product of its digits is 1920, while the sum is 24.

The square root of 425238 is about 652.1027526395. The cubic root of 425238 is about 75.1987616742.

The spelling of 425238 in words is "four hundred twenty-five thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 11 17 22 33 34 51 66 102 187 374 379 561 758 1122 1137 2274 4169 6443 8338 12507 12886 19329 25014 38658 70873 141746 212619 425238