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426380 = 22521319
BaseRepresentation
bin1101000000110001100
3210122212212
41220012030
5102121010
613045552
73424043
oct1500614
9718785
10426380
11271389
121868b8
1311c0c6
14b155a
1586505
hex6818c

426380 has 12 divisors (see below), whose sum is σ = 895440. Its totient is φ = 170544.

The previous prime is 426353. The next prime is 426383. The reversal of 426380 is 83624.

It is a happy number.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (426383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10640 + ... + 10679.

It is an arithmetic number, because the mean of its divisors is an integer number (74620).

2426380 is an apocalyptic number.

It is an amenable number.

426380 is an abundant number, since it is smaller than the sum of its proper divisors (469060).

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

426380 is a wasteful number, since it uses less digits than its factorization.

426380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21328 (or 21326 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 426380 is about 652.9777944157. The cubic root of 426380 is about 75.2660183042.

The spelling of 426380 in words is "four hundred twenty-six thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 21319 42638 85276 106595 213190 426380