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84954681 = 32721910139
BaseRepresentation
bin1010001000001…
…00111000111001
312220212010220200
411010010320321
5133222022211
612232512413
72051050200
oct504047071
9186763820
1084954681
1143a55789
122454b709
13147a6656
14b3d6237
1576d1b56
hex5104e39

84954681 has 36 divisors (see below), whose sum is σ = 150274800. Its totient is φ = 45985968.

The previous prime is 84954677. The next prime is 84954697. The reversal of 84954681 is 18645948.

It is not a de Polignac number, because 84954681 - 22 = 84954677 is a prime.

It is a super-2 number, since 2×849546812 = 14434595647623522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (84954641) 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 35 ways as a sum of consecutive naturals, for example, 3310 + ... + 13448.

It is an arithmetic number, because the mean of its divisors is an integer number (4174300).

Almost surely, 284954681 is an apocalyptic number.

It is an amenable number.

84954681 is a deficient number, since it is larger than the sum of its proper divisors (65320119).

84954681 is a wasteful number, since it uses less digits than its factorization.

84954681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10178 (or 10168 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 84954681 is about 9217.0863617523. The cubic root of 84954681 is about 439.6048121777.

The spelling of 84954681 in words is "eighty-four million, nine hundred fifty-four thousand, six hundred eighty-one".

Divisors: 1 3 7 9 19 21 49 57 63 133 147 171 399 441 931 1197 2793 8379 10139 30417 70973 91251 192641 212919 496811 577923 638757 1348487 1490433 1733769 4045461 4471299 9439409 12136383 28318227 84954681