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51055422864460 = 22573167717376547
BaseRepresentation
bin10111001101111010001000…
…10101111111110001001100
320200202211222012110220210121
423212331010111333301030
523142443001223130320
6300330312032114324
713516426654641310
oct1346750425776114
9220684865426717
1051055422864460
11152a45352163a3
125886a719959a4
1322646760a5871
14c8714a679b40
155d8106da08aa
hex2e6f4457fc4c

51055422864460 has 96 divisors (see below), whose sum is σ = 126672532697088. Its totient is φ = 16915024938240.

The previous prime is 51055422864359. The next prime is 51055422864497. The reversal of 51055422864460 is 6446822455015.

It is a junction number, because it is equal to n+sod(n) for n = 51055422864398 and 51055422864407.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5750094 + ... + 11626453.

It is an arithmetic number, because the mean of its divisors is an integer number (1319505548928).

Almost surely, 251055422864460 is an apocalyptic number.

It is an amenable number.

51055422864460 is an abundant number, since it is smaller than the sum of its proper divisors (75617109832628).

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

51055422864460 is a wasteful number, since it uses less digits than its factorization.

51055422864460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17377271 (or 17377269 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 52.

The spelling of 51055422864460 in words is "fifty-one trillion, fifty-five billion, four hundred twenty-two million, eight hundred sixty-four thousand, four hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 31 35 62 70 124 140 155 217 310 434 620 677 868 1085 1354 2170 2708 3385 4340 4739 6770 9478 13540 18956 20987 23695 41974 47390 83948 94780 104935 146909 209870 293818 419740 587636 734545 1469090 2938180 17376547 34753094 69506188 86882735 121635829 173765470 243271658 347530940 486543316 538672957 608179145 1077345914 1216358290 2154691828 2432716580 2693364785 3770710699 5386729570 7541421398 10773459140 11763922319 15082842796 18853553495 23527844638 37707106990 47055689276 58819611595 75414213980 82347456233 117639223190 164694912466 235278446380 329389824932 364681591889 411737281165 729363183778 823474562330 1458726367556 1646949124660 1823407959445 2552771143223 3646815918890 5105542286446 7293631837780 10211084572892 12763855716115 25527711432230 51055422864460