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428296960 = 2857133677
BaseRepresentation
bin11001100001110…
…100101100000000
31002211220201222101
4121201310230000
51334121000320
6110255520144
713420315120
oct3141645400
91084821871
10428296960
111aa842933
12bb529054
136a96b370
1440c4cc80
1527902c0a
hex19874b00

428296960 has 144 divisors (see below), whose sum is σ = 1262995776. Its totient is φ = 135512064.

The previous prime is 428296943. The next prime is 428296987. The reversal of 428296960 is 69692824.

It is a self number, because there is not a number n which added to its sum of digits gives 428296960.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114642 + ... + 118318.

It is an arithmetic number, because the mean of its divisors is an integer number (8770804).

Almost surely, 2428296960 is an apocalyptic number.

428296960 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 428296960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (631497888).

428296960 is an abundant number, since it is smaller than the sum of its proper divisors (834698816).

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

428296960 is a wasteful number, since it uses less digits than its factorization.

428296960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3718 (or 3704 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 428296960 is about 20695.3366727869. The cubic root of 428296960 is about 753.7864574093.

The spelling of 428296960 in words is "four hundred twenty-eight million, two hundred ninety-six thousand, nine hundred sixty".

Divisors: 1 2 4 5 7 8 10 13 14 16 20 26 28 32 35 40 52 56 64 65 70 80 91 104 112 128 130 140 160 182 208 224 256 260 280 320 364 416 448 455 520 560 640 728 832 896 910 1040 1120 1280 1456 1664 1792 1820 2080 2240 2912 3328 3640 3677 4160 4480 5824 7280 7354 8320 8960 11648 14560 14708 16640 18385 23296 25739 29120 29416 36770 47801 51478 58240 58832 73540 95602 102956 116480 117664 128695 147080 191204 205912 235328 239005 257390 294160 334607 382408 411824 470656 478010 514780 588320 669214 764816 823648 941312 956020 1029560 1176640 1338428 1529632 1647296 1673035 1912040 2059120 2353280 2676856 3059264 3294592 3346070 3824080 4118240 4706560 5353712 6118528 6589184 6692140 7648160 8236480 10707424 12237056 13384280 15296320 16472960 21414848 26768560 30592640 32945920 42829696 53537120 61185280 85659392 107074240 214148480 428296960