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280055028055 = 5115091909601
BaseRepresentation
bin1000001001101001001…
…01001001100101010111
3222202212111221110210111
410010310211021211113
514042023041344210
6332353331103451
726143011314155
oct4046445114527
9882774843714
10280055028055
11a8852842710
1246339a41b87
132054197cb6a
14d7aa2a23d5
1574416b288a
hex4134949957

280055028055 has 8 divisors (see below), whose sum is σ = 366617491344. Its totient is φ = 203676384000.

The previous prime is 280055028017. The next prime is 280055028091. The reversal of 280055028055 is 550820550082.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 280055028055 - 213 = 280055019863 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 280055027999 and 280055028017.

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 7 ways as a sum of consecutive naturals, for example, 2545954746 + ... + 2545954855.

It is an arithmetic number, because the mean of its divisors is an integer number (45827186418).

Almost surely, 2280055028055 is an apocalyptic number.

280055028055 is a deficient number, since it is larger than the sum of its proper divisors (86562463289).

280055028055 is a wasteful number, since it uses less digits than its factorization.

280055028055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5091909617.

The product of its (nonzero) digits is 160000, while the sum is 40.

The spelling of 280055028055 in words is "two hundred eighty billion, fifty-five million, twenty-eight thousand, fifty-five".

Divisors: 1 5 11 55 5091909601 25459548005 56011005611 280055028055