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84808047 = 334981001
BaseRepresentation
bin1010000111000…
…01000101101111
312220120200202210
411003201011233
5133202324142
612225421503
72046566532
oct503410557
9186520683
1084808047
11439655a5
122449a893
131475499c
14b398a19
1576a349c
hex50e116f

84808047 has 8 divisors (see below), whose sum is σ = 113402800. Its totient is φ = 56376000.

The previous prime is 84808027. The next prime is 84808057. The reversal of 84808047 is 74080848.

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

It is not a de Polignac number, because 84808047 - 212 = 84803951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 84807996 and 84808014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84808007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39454 + ... + 41547.

It is an arithmetic number, because the mean of its divisors is an integer number (14175350).

Almost surely, 284808047 is an apocalyptic number.

84808047 is a deficient number, since it is larger than the sum of its proper divisors (28594753).

84808047 is a wasteful number, since it uses less digits than its factorization.

84808047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81353.

The product of its (nonzero) digits is 57344, while the sum is 39.

The square root of 84808047 is about 9209.1284603919. The cubic root of 84808047 is about 439.3517433885.

The spelling of 84808047 in words is "eighty-four million, eight hundred eight thousand, forty-seven".

Divisors: 1 3 349 1047 81001 243003 28269349 84808047