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520254003103142 = 2721117231234297679
BaseRepresentation
bin111011001001010110001001…
…1000011000100010110100110
32112020001210111222200201100212
41312102230103003010112212
51021142320144243300032
65042253220051535422
7214404053121646100
oct16622542303042646
92466053458621325
10520254003103142
11140850535837760
124a424864bba572
131943a9851a3599
1492685dca0a570
154023001c37bb2
hex1d92b130c45a6

520254003103142 has 96 divisors (see below), whose sum is σ = 1094160458603520. Its totient is φ = 182478568715520.

The previous prime is 520254003103111. The next prime is 520254003103259. The reversal of 520254003103142 is 241301300452025.

It is a junction number, because it is equal to n+sod(n) for n = 520254003103099 and 520254003103108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 616727342 + ... + 617570337.

It is an arithmetic number, because the mean of its divisors is an integer number (11397504777120).

Almost surely, 2520254003103142 is an apocalyptic number.

520254003103142 is an abundant number, since it is smaller than the sum of its proper divisors (573906455500378).

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

520254003103142 is a wasteful number, since it uses less digits than its factorization.

520254003103142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234297746 (or 1234297739 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 520254003103142 its reverse (241301300452025), we get a palindrome (761555303555167).

The spelling of 520254003103142 in words is "five hundred twenty trillion, two hundred fifty-four billion, three million, one hundred three thousand, one hundred forty-two".

Divisors: 1 2 7 11 14 17 22 23 34 46 49 77 98 119 154 161 187 238 253 322 374 391 506 539 782 833 1078 1127 1309 1666 1771 2254 2618 2737 3542 4301 5474 8602 9163 12397 18326 19159 24794 30107 38318 60214 210749 421498 1234297679 2468595358 8640083753 13577274469 17280167506 20983060543 27154548938 28388846617 41966121086 56777693234 60480586271 95040921283 120961172542 146881423801 190081842566 198721926319 230813665973 293762847602 312277312787 397443852638 461627331946 482610392489 624554625574 665286448981 965220784978 1028169966607 1330572897962 1391053484233 1615695661811 2056339933214 2185941189509 2782106968466 3231391323622 3378272747423 4371882379018 5308714317379 6756545494846 10617428634758 11309869632677 15301588326563 22619739265354 23647909231961 30603176653126 37161000221653 47295818463922 74322000443306 260127001551571 520254003103142