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127421108480 = 28599547741
BaseRepresentation
bin111011010101011100…
…0111101000100000000
3110011220012021222112002
41312222320331010000
54041424300432410
6134311512323132
712130420360121
oct1665270750400
9404805258462
10127421108480
114a047991826
12208410a34a8
13c028812713
14624aba0048
1534ab7527a5
hex1daae3d100

127421108480 has 36 divisors (see below), whose sum is σ = 305213376972. Its totient is φ = 50968442880.

The previous prime is 127421108473. The next prime is 127421108497. The reversal of 127421108480 is 84801124721.

It can be written as a sum of positive squares in 2 ways, for example, as 91339346176 + 36081762304 = 302224^2 + 189952^2 .

It is a super-2 number, since 2×1274211084802 (a number of 23 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 49772591 + ... + 49775150.

Almost surely, 2127421108480 is an apocalyptic number.

127421108480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

127421108480 is an abundant number, since it is smaller than the sum of its proper divisors (177792268492).

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

127421108480 is an frugal number, since it uses more digits than its factorization.

127421108480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99547762 (or 99547748 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 38.

The spelling of 127421108480 in words is "one hundred twenty-seven billion, four hundred twenty-one million, one hundred eight thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 99547741 199095482 398190964 497738705 796381928 995477410 1592763856 1990954820 3185527712 3981909640 6371055424 7963819280 12742110848 15927638560 25484221696 31855277120 63710554240 127421108480