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827420361 = 3275806787
BaseRepresentation
bin110001010100010…
…110111011001001
32010122221022100120
4301110112323021
53143304422421
6214034253453
726334646155
oct6124267311
92118838316
10827420361
1139506a189
121b1127289
13102563961
147bc66065
154c9918c6
hex31516ec9

827420361 has 4 divisors (see below), whose sum is σ = 1103227152. Its totient is φ = 551613572.

The previous prime is 827420327. The next prime is 827420369. The reversal of 827420361 is 163024728.

827420361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 827420361 - 29 = 827419849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (827420369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137903391 + ... + 137903396.

It is an arithmetic number, because the mean of its divisors is an integer number (275806788).

Almost surely, 2827420361 is an apocalyptic number.

It is an amenable number.

827420361 is a deficient number, since it is larger than the sum of its proper divisors (275806791).

827420361 is a wasteful number, since it uses less digits than its factorization.

827420361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275806790.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 827420361 is about 28764.9154526830. The cubic root of 827420361 is about 938.8050157621.

The spelling of 827420361 in words is "eight hundred twenty-seven million, four hundred twenty thousand, three hundred sixty-one".

Divisors: 1 3 275806787 827420361