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17984429974 = 27192313732141
BaseRepresentation
bin10000101111111101…
…001001111110010110
31201102100212200222001
4100233331021332112
5243313003224344
612132324425514
71204446063310
oct205775117626
951370780861
1017984429974
117699818475
12359ab4829a
131907c3b654
14c287367b0
15703d2eed4
hex42ff49f96

17984429974 has 64 divisors (see below), whose sum is σ = 33904604160. Its totient is φ = 6976126080.

The previous prime is 17984429971. The next prime is 17984429989. The reversal of 17984429974 is 47992448971.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17984429971) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8398944 + ... + 8401084.

It is an arithmetic number, because the mean of its divisors is an integer number (529759440).

Almost surely, 217984429974 is an apocalyptic number.

17984429974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

17984429974 is a deficient number, since it is larger than the sum of its proper divisors (15920174186).

17984429974 is a wasteful number, since it uses less digits than its factorization.

17984429974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565.

The product of its digits is 36578304, while the sum is 64.

The spelling of 17984429974 in words is "seventeen billion, nine hundred eighty-four million, four hundred twenty-nine thousand, nine hundred seventy-four".

Divisors: 1 2 7 14 19 23 38 46 133 161 266 322 437 874 1373 2141 2746 3059 4282 6118 9611 14987 19222 26087 29974 31579 40679 49243 52174 63158 81358 98486 182609 221053 284753 344701 365218 442106 569506 600001 689402 935617 1200002 1871234 2939593 4200007 5879186 6549319 8400014 13098638 20577151 41154302 55852267 67610639 111704534 135221278 390965869 473274473 781931738 946548946 1284602141 2569204282 8992214987 17984429974