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57228890880 = 283572129051
BaseRepresentation
bin110101010011000110…
…111001001100000000
312110201101020212200010
4311103012321030000
51414201044002010
642142433424520
74064120355240
oct652306711400
9173641225603
1057228890880
11222a8242837
12b111a0b140
135520607155
142aac82db20
15174e323620
hexd531b9300

57228890880 has 144 divisors (see below), whose sum is σ = 208885549824. Its totient is φ = 13080883200.

The previous prime is 57228890861. The next prime is 57228890903. The reversal of 57228890880 is 8809882275.

It is a self number, because there is not a number n which added to its sum of digits gives 57228890880.

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, 1037646 + ... + 1091405.

It is an arithmetic number, because the mean of its divisors is an integer number (1450594096).

Almost surely, 257228890880 is an apocalyptic number.

It is an amenable number.

57228890880 is an abundant number, since it is smaller than the sum of its proper divisors (151656658944).

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

57228890880 is a wasteful number, since it uses less digits than its factorization.

57228890880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129082 (or 2129068 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 57.

The spelling of 57228890880 in words is "fifty-seven billion, two hundred twenty-eight million, eight hundred ninety thousand, eight hundred eighty".

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 96 105 112 120 128 140 160 168 192 210 224 240 256 280 320 336 384 420 448 480 560 640 672 768 840 896 960 1120 1280 1344 1680 1792 1920 2240 2688 3360 3840 4480 5376 6720 8960 13440 26880 2129051 4258102 6387153 8516204 10645255 12774306 14903357 17032408 21290510 25548612 29806714 31935765 34064816 42581020 44710071 51097224 59613428 63871530 68129632 74516785 85162040 89420142 102194448 119226856 127743060 136259264 149033570 170324080 178840284 204388896 223550355 238453712 255486120 272518528 298067140 340648160 357680568 408777792 447100710 476907424 510972240 545037056 596134280 681296320 715361136 817555584 894201420 953814848 1021944480 1192268560 1362592640 1430722272 1635111168 1788402840 1907629696 2043888960 2384537120 2725185280 2861444544 3576805680 3815259392 4087777920 4769074240 5722889088 7153611360 8175555840 9538148480 11445778176 14307222720 19076296960 28614445440 57228890880