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80128377355 = 5132942508423
BaseRepresentation
bin100101010100000000…
…1100000001000001011
321122211021200022121211
41022220001200020023
52303100331033410
6100451021113551
75534440653415
oct1125001401013
9248737608554
1080128377355
1130a8941a974
12136429b88b7
13772c902b50
143c41c359b5
15213e8cb68a
hex12a806020b

80128377355 has 16 divisors (see below), whose sum is σ = 107121228480. Its totient is φ = 57131319168.

The previous prime is 80128377353. The next prime is 80128377359. The reversal of 80128377355 is 55377382108.

It is a cyclic number.

It is not a de Polignac number, because 80128377355 - 21 = 80128377353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80128377299 and 80128377308.

It is not an unprimeable number, because it can be changed into a prime (80128377353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21252327 + ... + 21256096.

It is an arithmetic number, because the mean of its divisors is an integer number (6695076780).

Almost surely, 280128377355 is an apocalyptic number.

80128377355 is a deficient number, since it is larger than the sum of its proper divisors (26992851125).

80128377355 is a wasteful number, since it uses less digits than its factorization.

80128377355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42508470.

The product of its (nonzero) digits is 1411200, while the sum is 49.

The spelling of 80128377355 in words is "eighty billion, one hundred twenty-eight million, three hundred seventy-seven thousand, three hundred fifty-five".

Divisors: 1 5 13 29 65 145 377 1885 42508423 212542115 552609499 1232744267 2763047495 6163721335 16025675471 80128377355