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445068857870 = 2571319188913627
BaseRepresentation
bin1100111101000000010…
…10111101001000001110
31120112210121120120021222
412132200022331020032
524243000111422440
6540243430123342
744104135605050
oct6364012751016
91515717516258
10445068857870
1116183084937a
12723107b0552
1332c7b8ab190
1417781a378d0
15b89d3d92b5
hex67a02bd20e

445068857870 has 128 divisors (see below), whose sum is σ = 1038519014400. Its totient is φ = 133363003392.

The previous prime is 445068857843. The next prime is 445068857899. The reversal of 445068857870 is 78758860544.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32653997 + ... + 32667623.

It is an arithmetic number, because the mean of its divisors is an integer number (8113429800).

Almost surely, 2445068857870 is an apocalyptic number.

445068857870 is an abundant number, since it is smaller than the sum of its proper divisors (593450156530).

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

445068857870 is a wasteful number, since it uses less digits than its factorization.

445068857870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15562.

The product of its (nonzero) digits is 60211200, while the sum is 62.

The spelling of 445068857870 in words is "four hundred forty-five billion, sixty-eight million, eight hundred fifty-seven thousand, eight hundred seventy".

Divisors: 1 2 5 7 10 13 14 19 26 35 38 65 70 91 95 130 133 182 190 247 266 455 494 665 910 1235 1330 1729 1889 2470 3458 3778 8645 9445 13223 13627 17290 18890 24557 26446 27254 35891 49114 66115 68135 71782 95389 122785 132230 136270 171899 177151 179455 190778 245570 251237 258913 343798 354302 358910 466583 476945 502474 517826 859495 885755 933166 953890 1240057 1256185 1294565 1718990 1771510 1812391 2332915 2480114 2512370 2589130 3266081 3365869 3624782 4665830 6200285 6532162 6731738 9061955 12400570 16330405 16829345 18123910 23561083 25741403 32660810 33658690 47122166 51482806 117805415 128707015 180189821 235610830 257414030 334638239 360379642 489086657 669276478 900949105 978173314 1673191195 1801898210 2342467673 2445433285 3346382390 3423606599 4684935346 4890866570 6358126541 6847213198 11712338365 12716253082 17118032995 23424676730 31790632705 34236065990 44506885787 63581265410 89013771574 222534428935 445068857870