Search a number
-
+
108840240 = 24335411229
BaseRepresentation
bin1100111110011…
…00010100110000
321120210122202000
412133030110300
5210330341430
614444454000
72461061325
oct637142460
9246718660
10108840240
115648a313
123054a300
131971a512
1410652b4c
15984de60
hex67cc530

108840240 has 160 divisors (see below), whose sum is σ = 384350400. Its totient is φ = 28293120.

The previous prime is 108840211. The next prime is 108840247. The reversal of 108840240 is 42048801.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (108840247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87946 + ... + 89174.

It is an arithmetic number, because the mean of its divisors is an integer number (2402190).

Almost surely, 2108840240 is an apocalyptic number.

108840240 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 108840240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192175200).

108840240 is an abundant number, since it is smaller than the sum of its proper divisors (275510160).

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

108840240 is a wasteful number, since it uses less digits than its factorization.

108840240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292 (or 1280 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 108840240 is about 10432.6525869503. The cubic root of 108840240 is about 477.4521246190.

It can be divided in two parts, 1088 and 40240, that added together give a triangular number (41328 = T287).

The spelling of 108840240 in words is "one hundred eight million, eight hundred forty thousand, two hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 36 40 41 45 48 54 60 72 80 82 90 108 120 123 135 144 164 180 205 216 240 246 270 328 360 369 410 432 492 540 615 656 720 738 820 984 1080 1107 1229 1230 1476 1640 1845 1968 2160 2214 2458 2460 2952 3280 3687 3690 4428 4916 4920 5535 5904 6145 7374 7380 8856 9832 9840 11061 11070 12290 14748 14760 17712 18435 19664 22122 22140 24580 29496 29520 33183 36870 44244 44280 49160 50389 55305 58992 66366 73740 88488 88560 98320 100778 110610 132732 147480 151167 165915 176976 201556 221220 251945 265464 294960 302334 331830 403112 442440 453501 503890 530928 604668 663660 755835 806224 884880 907002 1007780 1209336 1327320 1360503 1511670 1814004 2015560 2267505 2418672 2654640 2721006 3023340 3628008 4031120 4535010 5442012 6046680 6802515 7256016 9070020 10884024 12093360 13605030 18140040 21768048 27210060 36280080 54420120 108840240