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127765053555 = 3519942802363
BaseRepresentation
bin111011011111101100…
…1000000000001110011
3110012210011111012110120
41312333121000001303
54043130323203210
6134410000301323
712142065015336
oct1667731000163
9405704435416
10127765053555
114a204050857
1220918311843
13c081b58909
14628073261d
1534cba42270
hex1dbf640073

127765053555 has 16 divisors (see below), whose sum is σ = 205451347200. Its totient is φ = 67798941408.

The previous prime is 127765053553. The next prime is 127765053589. The reversal of 127765053555 is 555350567721.

It is not a de Polignac number, because 127765053555 - 21 = 127765053553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 127765053498 and 127765053507.

It is not an unprimeable number, because it can be changed into a prime (127765053553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21398197 + ... + 21404166.

It is an arithmetic number, because the mean of its divisors is an integer number (12840709200).

Almost surely, 2127765053555 is an apocalyptic number.

127765053555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

127765053555 is a deficient number, since it is larger than the sum of its proper divisors (77686293645).

127765053555 is a wasteful number, since it uses less digits than its factorization.

127765053555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42802570.

The product of its (nonzero) digits is 5512500, while the sum is 51.

The spelling of 127765053555 in words is "one hundred twenty-seven billion, seven hundred sixty-five million, fifty-three thousand, five hundred fifty-five".

Divisors: 1 3 5 15 199 597 995 2985 42802363 128407089 214011815 642035445 8517670237 25553010711 42588351185 127765053555