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16243480 = 23511192967
BaseRepresentation
bin111101111101…
…101100011000
31010120020212101
4331331230120
513124242410
61340053144
7255032041
oct75755430
933506771
1016243480
119194a70
1255341b4
133499636
14222b8c8
15165cd3a
hexf7db18

16243480 has 128 divisors (see below), whose sum is σ = 44064000. Its totient is φ = 5322240.

The previous prime is 16243471. The next prime is 16243531. The reversal of 16243480 is 8434261.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242407 + ... + 242473.

It is an arithmetic number, because the mean of its divisors is an integer number (344250).

Almost surely, 216243480 is an apocalyptic number.

16243480 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 16243480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22032000).

16243480 is an abundant number, since it is smaller than the sum of its proper divisors (27820520).

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

16243480 is a wasteful number, since it uses less digits than its factorization.

16243480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 16243480 is about 4030.3200865440. The cubic root of 16243480 is about 253.2559705294.

The spelling of 16243480 in words is "sixteen million, two hundred forty-three thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 11 19 20 22 29 38 40 44 55 58 67 76 88 95 110 116 134 145 152 190 209 220 232 268 290 319 335 380 418 440 536 551 580 638 670 737 760 836 1045 1102 1160 1273 1276 1340 1474 1595 1672 1943 2090 2204 2546 2552 2680 2755 2948 3190 3685 3886 4180 4408 5092 5510 5896 6061 6365 6380 7370 7772 8360 9715 10184 11020 12122 12730 12760 14003 14740 15544 19430 21373 22040 24244 25460 28006 29480 30305 36917 38860 42746 48488 50920 56012 60610 70015 73834 77720 85492 106865 112024 121220 140030 147668 170984 184585 213730 242440 280060 295336 369170 406087 427460 560120 738340 812174 854920 1476680 1624348 2030435 3248696 4060870 8121740 16243480