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30844320 = 2535134943
BaseRepresentation
bin111010110101…
…0010110100000
32011001001110020
41311222112200
530344004240
63021033440
7523113063
oct165522640
964031406
1030844320
1116457881
12a3b5880
13650c3a0
14414c8da
152a940d0
hex1d6a5a0

30844320 has 96 divisors (see below), whose sum is σ = 104654592. Its totient is φ = 7590912.

The previous prime is 30844309. The next prime is 30844337. The reversal of 30844320 is 2344803.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3769 + ... + 8711.

It is an arithmetic number, because the mean of its divisors is an integer number (1090152).

Almost surely, 230844320 is an apocalyptic number.

30844320 is a gapful number since it is divisible by the number (30) 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 30844320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52327296).

30844320 is an abundant number, since it is smaller than the sum of its proper divisors (73810272).

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

30844320 is a wasteful number, since it uses less digits than its factorization.

30844320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4974 (or 4966 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 30844320 is about 5553.7662896453. The cubic root of 30844320 is about 313.6113221304.

It can be divided in two parts, 30 and 844320, that added together give a triangular number (844350 = T1299).

The spelling of 30844320 in words is "thirty million, eight hundred forty-four thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 65 78 80 96 104 120 130 156 160 195 208 240 260 312 390 416 480 520 624 780 1040 1248 1560 2080 3120 4943 6240 9886 14829 19772 24715 29658 39544 49430 59316 64259 74145 79088 98860 118632 128518 148290 158176 192777 197720 237264 257036 296580 321295 385554 395440 474528 514072 593160 642590 771108 790880 963885 1028144 1186320 1285180 1542216 1927770 2056288 2372640 2570360 3084432 3855540 5140720 6168864 7711080 10281440 15422160 30844320