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84308361 = 328102787
BaseRepresentation
bin1010000011001…
…11000110001001
312212122022022220
411001213012021
5133040331421
612211004253
72042415654
oct501470611
9185568286
1084308361
1143654135
1224299689
131460b407
14b2a889b
1576053c6
hex5067189

84308361 has 4 divisors (see below), whose sum is σ = 112411152. Its totient is φ = 56205572.

The previous prime is 84308353. The next prime is 84308387. The reversal of 84308361 is 16380348.

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 84308361 - 23 = 84308353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84308351) 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 3 ways as a sum of consecutive naturals, for example, 14051391 + ... + 14051396.

It is an arithmetic number, because the mean of its divisors is an integer number (28102788).

Almost surely, 284308361 is an apocalyptic number.

It is an amenable number.

84308361 is a deficient number, since it is larger than the sum of its proper divisors (28102791).

84308361 is a wasteful number, since it uses less digits than its factorization.

84308361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28102790.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 84308361 is about 9181.9584512238. The cubic root of 84308361 is about 438.4871615090.

The spelling of 84308361 in words is "eighty-four million, three hundred eight thousand, three hundred sixty-one".

Divisors: 1 3 28102787 84308361