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248949120 = 2735718523
BaseRepresentation
bin11101101011010…
…10100110000000
3122100102220222210
432311222212000
51002212332440
640411502120
76112014120
oct1665524600
9570386883
10248949120
11118586182
126b457940
133c765294
14250c4c80
1516cc7a80
hexed6a980

248949120 has 128 divisors (see below), whose sum is σ = 906935040. Its totient is φ = 56899584.

The previous prime is 248949119. The next prime is 248949161. The reversal of 248949120 is 21949842.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4179 + ... + 22701.

It is an arithmetic number, because the mean of its divisors is an integer number (7085430).

Almost surely, 2248949120 is an apocalyptic number.

248949120 is a gapful number since it is divisible by the number (20) 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 248949120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453467520).

248949120 is an abundant number, since it is smaller than the sum of its proper divisors (657985920).

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

248949120 is a wasteful number, since it uses less digits than its factorization.

248949120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18552 (or 18540 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 248949120 is about 15778.1215611999. The cubic root of 248949120 is about 629.0766013693.

The spelling of 248949120 in words is "two hundred forty-eight million, nine hundred forty-nine thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 64 70 80 84 96 105 112 120 128 140 160 168 192 210 224 240 280 320 336 384 420 448 480 560 640 672 840 896 960 1120 1344 1680 1920 2240 2688 3360 4480 6720 13440 18523 37046 55569 74092 92615 111138 129661 148184 185230 222276 259322 277845 296368 370460 388983 444552 518644 555690 592736 648305 740920 777966 889104 1037288 1111380 1185472 1296610 1481840 1555932 1778208 1944915 2074576 2222760 2370944 2593220 2963680 3111864 3556416 3889830 4149152 4445520 5186440 5927360 6223728 7112832 7779660 8298304 8891040 10372880 11854720 12447456 15559320 16596608 17782080 20745760 24894912 31118640 35564160 41491520 49789824 62237280 82983040 124474560 248949120