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4128480 = 253254761
BaseRepresentation
bin1111101111111011100000
321202202012200
433233323200
52024102410
6224253200
750043246
oct17577340
97682180
104128480
11236a874
121471200
13b171b5
14796796
155683c0
hex3efee0

4128480 has 144 divisors (see below), whose sum is σ = 14624064. Its totient is φ = 1059840.

The previous prime is 4128451. The next prime is 4128493. The reversal of 4128480 is 848214.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×41284802 = 34088694220800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67650 + ... + 67710.

It is an arithmetic number, because the mean of its divisors is an integer number (101556).

Almost surely, 24128480 is an apocalyptic number.

4128480 is a gapful number since it is divisible by the number (40) 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 4128480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7312032).

4128480 is an abundant number, since it is smaller than the sum of its proper divisors (10495584).

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

4128480 is a wasteful number, since it uses less digits than its factorization.

4128480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 118 counting only the distinct ones).

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

The square root of 4128480 is about 2031.8661373230. The cubic root of 4128480 is about 160.4218036997.

The spelling of 4128480 in words is "four million, one hundred twenty-eight thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 47 48 60 61 72 80 90 94 96 120 122 141 144 160 180 183 188 235 240 244 282 288 305 360 366 376 423 470 480 488 549 564 610 705 720 732 752 846 915 940 976 1098 1128 1220 1410 1440 1464 1504 1692 1830 1880 1952 2115 2196 2256 2440 2745 2820 2867 2928 3384 3660 3760 4230 4392 4512 4880 5490 5640 5734 5856 6768 7320 7520 8460 8601 8784 9760 10980 11280 11468 13536 14335 14640 16920 17202 17568 21960 22560 22936 25803 28670 29280 33840 34404 43005 43920 45872 51606 57340 67680 68808 86010 87840 91744 103212 114680 129015 137616 172020 206424 229360 258030 275232 344040 412848 458720 516060 688080 825696 1032120 1376160 2064240 4128480