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16243080 = 2335761317
BaseRepresentation
bin111101111101…
…100110001000
31010120020022120
4331331212020
513124234310
61340051240
7255030630
oct75754610
933506276
1016243080
119194737
125533b20
1334993b9
14222b6c0
15165cb70
hexf7d988

16243080 has 128 divisors (see below), whose sum is σ = 56782080. Its totient is φ = 3640320.

The previous prime is 16243079. The next prime is 16243091. The reversal of 16243080 is 8034261.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 16243080.

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, 51082 + ... + 51398.

It is an arithmetic number, because the mean of its divisors is an integer number (443610).

Almost surely, 216243080 is an apocalyptic number.

16243080 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 16243080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28391040).

16243080 is an abundant number, since it is smaller than the sum of its proper divisors (40539000).

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

16243080 is a wasteful number, since it uses less digits than its factorization.

16243080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 16243080 is about 4030.2704623883. The cubic root of 16243080 is about 253.2538916806.

The spelling of 16243080 in words is "sixteen million, two hundred forty-three thousand, eighty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 20 21 24 28 30 35 40 42 56 60 61 70 84 105 120 122 140 168 183 210 244 280 305 317 366 420 427 488 610 634 732 840 854 915 951 1220 1268 1281 1464 1585 1708 1830 1902 2135 2219 2440 2536 2562 3170 3416 3660 3804 4270 4438 4755 5124 6340 6405 6657 7320 7608 8540 8876 9510 10248 11095 12680 12810 13314 17080 17752 19020 19337 22190 25620 26628 33285 38040 38674 44380 51240 53256 58011 66570 77348 88760 96685 116022 133140 135359 154696 193370 232044 266280 270718 290055 386740 406077 464088 541436 580110 676795 773480 812154 1082872 1160220 1353590 1624308 2030385 2320440 2707180 3248616 4060770 5414360 8121540 16243080