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827420 = 225113761
BaseRepresentation
bin11001010000000011100
31120001000012
43022000130
5202434140
625422352
710014206
oct3120034
91501005
10827420
11515720
1233a9b8
1322c7c9
14177776
15115265
hexca01c

827420 has 24 divisors (see below), whose sum is σ = 1896048. Its totient is φ = 300800.

The previous prime is 827417. The next prime is 827423. The reversal of 827420 is 24728.

It is an interprime number because it is at equal distance from previous prime (827417) and next prime (827423).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827423) 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 7 ways as a sum of consecutive naturals, for example, 1661 + ... + 2100.

It is an arithmetic number, because the mean of its divisors is an integer number (79002).

2827420 is an apocalyptic number.

It is an amenable number.

827420 is an abundant number, since it is smaller than the sum of its proper divisors (1068628).

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

827420 is a wasteful number, since it uses less digits than its factorization.

827420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3781 (or 3779 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 827420 is about 909.6262968934. The cubic root of 827420 is about 93.8804879230.

The spelling of 827420 in words is "eight hundred twenty-seven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 3761 7522 15044 18805 37610 41371 75220 82742 165484 206855 413710 827420