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854454939 = 31321909101
BaseRepresentation
bin110010111011011…
…111001010011011
32012112210210211020
4302323133022123
53222220024224
6220441533523
730113514162
oct6273371233
92175723736
10854454939
113a9354708
121ba1a42a3
1310803ac50
14816a23d9
1550031c79
hex32edf29b

854454939 has 8 divisors (see below), whose sum is σ = 1226909712. Its totient is φ = 525818400.

The previous prime is 854454919. The next prime is 854454943. The reversal of 854454939 is 939454458.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 854454939 - 29 = 854454427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 854454891 and 854454900.

It is not an unprimeable number, because it can be changed into a prime (854454919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10954512 + ... + 10954589.

It is an arithmetic number, because the mean of its divisors is an integer number (153363714).

Almost surely, 2854454939 is an apocalyptic number.

854454939 is a deficient number, since it is larger than the sum of its proper divisors (372454773).

854454939 is a wasteful number, since it uses less digits than its factorization.

854454939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21909117.

The product of its digits is 3110400, while the sum is 51.

The square root of 854454939 is about 29231.0612020843. The cubic root of 854454939 is about 948.9202650601.

The spelling of 854454939 in words is "eight hundred fifty-four million, four hundred fifty-four thousand, nine hundred thirty-nine".

Divisors: 1 3 13 39 21909101 65727303 284818313 854454939