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14989520 = 2457132971
BaseRepresentation
bin111001001011…
…100011010000
31001012112202102
4321023203100
512314131040
61253135532
7241260140
oct71134320
931175672
1014989520
118508937
12502a5a8
13314a950
141dc2920
1514b1515
hexe4b8d0

14989520 has 160 divisors (see below), whose sum is σ = 44997120. Its totient is φ = 4515840.

The previous prime is 14989519. The next prime is 14989531. The reversal of 14989520 is 2598941.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 211085 + ... + 211155.

It is an arithmetic number, because the mean of its divisors is an integer number (281232).

Almost surely, 214989520 is an apocalyptic number.

14989520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 14989520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22498560).

14989520 is an abundant number, since it is smaller than the sum of its proper divisors (30007600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14989520 is a wasteful number, since it uses less digits than its factorization.

14989520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 14989520 is about 3871.6301476252. The cubic root of 14989520 is about 246.5637587128.

The spelling of 14989520 in words is "fourteen million, nine hundred eighty-nine thousand, five hundred twenty".

Divisors: 1 2 4 5 7 8 10 13 14 16 20 26 28 29 35 40 52 56 58 65 70 71 80 91 104 112 116 130 140 142 145 182 203 208 232 260 280 284 290 355 364 377 406 455 464 497 520 560 568 580 710 728 754 812 910 923 994 1015 1040 1136 1160 1420 1456 1508 1624 1820 1846 1885 1988 2030 2059 2320 2485 2639 2840 3016 3248 3640 3692 3770 3976 4060 4118 4615 4970 5278 5680 6032 6461 7280 7384 7540 7952 8120 8236 9230 9940 10295 10556 12922 13195 14413 14768 15080 16240 16472 18460 19880 20590 21112 25844 26390 26767 28826 30160 32305 32944 36920 39760 41180 42224 51688 52780 53534 57652 64610 72065 73840 82360 103376 105560 107068 115304 129220 133835 144130 164720 187369 211120 214136 230608 258440 267670 288260 374738 428272 516880 535340 576520 749476 936845 1070680 1153040 1498952 1873690 2141360 2997904 3747380 7494760 14989520