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385286344874480 = 24574714638538939
BaseRepresentation
bin101011110011010100111011…
…1101110010001100111110000
31212112012000101211022111220202
41113212221313232101213300
5401000012413241440410
63443234034153454332
7144104006540625530
oct12746516756214760
91775160354274822
10385286344874480
11101845026318515
12372670a94113a8
13136ca46712b25a
146b1dd5c5334c0
152e822ae469ca5
hex15e6a77b919f0

385286344874480 has 80 divisors (see below), whose sum is σ = 1045543005250560. Its totient is φ = 129287575900416.

The previous prime is 385286344874467. The next prime is 385286344874521. The reversal of 385286344874480 is 84478443682583.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 385286344874398 and 385286344874407.

It is a congruent number.

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, 7319243150 + ... + 7319295789.

It is an arithmetic number, because the mean of its divisors is an integer number (13069287565632).

Almost surely, 2385286344874480 is an apocalyptic number.

It is an amenable number.

385286344874480 is an abundant number, since it is smaller than the sum of its proper divisors (660256660376080).

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

385286344874480 is a wasteful number, since it uses less digits than its factorization.

385286344874480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14638539006 (or 14638539000 counting only the distinct ones).

The product of its (nonzero) digits is 3963617280, while the sum is 74.

The spelling of 385286344874480 in words is "three hundred eighty-five trillion, two hundred eighty-six billion, three hundred forty-four million, eight hundred seventy-four thousand, four hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 47 56 70 80 94 112 140 188 235 280 329 376 470 560 658 752 940 1316 1645 1880 2632 3290 3760 5264 6580 13160 26320 14638538939 29277077878 58554155756 73192694695 102469772573 117108311512 146385389390 204939545146 234216623024 292770778780 409879090292 512348862865 585541557560 688011330133 819758180584 1024697725730 1171083115120 1376022660266 1639516361168 2049395451460 2752045320532 3440056650665 4098790902920 4816079310931 5504090641064 6880113301330 8197581805840 9632158621862 11008181282128 13760226602660 19264317243724 24080396554655 27520453205320 38528634487448 48160793109310 55040906410640 77057268974896 96321586218620 192643172437240 385286344874480