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585380421 = 32278923321
BaseRepresentation
bin100010111001000…
…011001001000101
31111210111101222100
4202321003021011
52144324133141
6134030422313
720335436313
oct4271031105
91453441870
10585380421
11280482a7a
12144061999
139437a462
1457a5d0b3
15365d10b6
hex22e43245

585380421 has 12 divisors (see below), whose sum is σ = 845888940. Its totient is φ = 390096960.

The previous prime is 585380417. The next prime is 585380423. The reversal of 585380421 is 124083585.

It is a happy number.

585380421 is a `hidden beast` number, since 585 + 38 + 0 + 42 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 320016321 + 265364100 = 17889^2 + 16290^2 .

It is not a de Polignac number, because 585380421 - 22 = 585380417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (585380423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13441 + ... + 36761.

It is an arithmetic number, because the mean of its divisors is an integer number (70490745).

Almost surely, 2585380421 is an apocalyptic number.

It is an amenable number.

585380421 is a deficient number, since it is larger than the sum of its proper divisors (260508519).

585380421 is a wasteful number, since it uses less digits than its factorization.

585380421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26116 (or 26113 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 585380421 is about 24194.6362030926. The cubic root of 585380421 is about 836.5259109539.

The spelling of 585380421 in words is "five hundred eighty-five million, three hundred eighty thousand, four hundred twenty-one".

Divisors: 1 3 9 2789 8367 23321 25101 69963 209889 65042269 195126807 585380421