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42106151520 = 25325231271321
BaseRepresentation
bin100111001101101110…
…001110001001100000
311000200110011010020100
4213031232032021200
51142213133322040
631202052542400
73020300245146
oct471556161140
9130613133210
1042106151520
1116947908934
1281b1321a00
133c80515374
1420761b9596
151166866b30
hex9cdb8e260

42106151520 has 144 divisors (see below), whose sum is σ = 149934631392. Its totient is φ = 10740111360.

The previous prime is 42106151471. The next prime is 42106151533. The reversal of 42106151520 is 2515160124.

42106151520 is a `hidden beast` number, since 4 + 2 + 10 + 615 + 15 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 602541 + ... + 668780.

It is an arithmetic number, because the mean of its divisors is an integer number (1041212718).

Almost surely, 242106151520 is an apocalyptic number.

42106151520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42106151520 is an abundant number, since it is smaller than the sum of its proper divisors (107828479872).

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

42106151520 is a wasteful number, since it uses less digits than its factorization.

42106151520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271365 (or 1271354 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The spelling of 42106151520 in words is "forty-two billion, one hundred six million, one hundred fifty-one thousand, five hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 30 32 36 40 45 46 48 60 69 72 80 90 92 96 115 120 138 144 160 180 184 207 230 240 276 288 345 360 368 414 460 480 552 690 720 736 828 920 1035 1104 1380 1440 1656 1840 2070 2208 2760 3312 3680 4140 5520 6624 8280 11040 16560 33120 1271321 2542642 3813963 5085284 6356605 7627926 10170568 11441889 12713210 15255852 19069815 20341136 22883778 25426420 29240383 30511704 38139630 40682272 45767556 50852840 57209445 58480766 61023408 76279260 87721149 91535112 101705680 114418890 116961532 122046816 146201915 152558520 175442298 183070224 203411360 228837780 233923064 263163447 292403830 305117040 350884596 366140448 438605745 457675560 467846128 526326894 584807660 610234080 701769192 877211490 915351120 935692256 1052653788 1169615320 1315817235 1403538384 1754422980 1830702240 2105307576 2339230640 2631634470 2807076768 3508845960 4210615152 4678461280 5263268940 7017691920 8421230304 10526537880 14035383840 21053075760 42106151520