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641634159214 = 21961677158189
BaseRepresentation
bin10010101011001000110…
…00000100101001101110
32021100011120212111000001
421111210120010221232
541003031321043324
61210432422454514
764233202236256
oct11254430045156
92240146774001
10641634159214
1122812a834644
12a4429b9443a
1348676445989
14230ab8b8966
1511a5504ee44
hex9564604a6e

641634159214 has 64 divisors (see below), whose sum is σ = 1059821452800. Its totient is φ = 290334844800.

The previous prime is 641634159197. The next prime is 641634159241. The reversal of 641634159214 is 412951436146.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10997632 + ... + 11055820.

It is an arithmetic number, because the mean of its divisors is an integer number (16559710200).

Almost surely, 2641634159214 is an apocalyptic number.

641634159214 is a deficient number, since it is larger than the sum of its proper divisors (418187293586).

641634159214 is a wasteful number, since it uses less digits than its factorization.

641634159214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58409.

The product of its digits is 622080, while the sum is 46.

The spelling of 641634159214 in words is "six hundred forty-one billion, six hundred thirty-four million, one hundred fifty-nine thousand, two hundred fourteen".

Divisors: 1 2 19 38 61 67 71 122 134 142 1159 1273 1349 2318 2546 2698 4087 4331 4757 8174 8662 9514 58189 77653 82289 90383 116378 155306 164578 180766 290177 580354 1105591 2211182 3549529 3898663 4131419 5513363 7099058 7797326 8262838 11026726 67441051 74074597 78496961 134882102 148149194 156993922 237818443 252016559 276805073 475636886 504033118 553610146 4518550417 4788314621 5259296387 9037100834 9576629242 10518592774 16885109453 33770218906 320817079607 641634159214