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2748855281 = 23314389659
BaseRepresentation
bin1010001111011000…
…0011001111110001
321002120110022112212
42203312003033301
521112201332111
61132433301505
7125055612224
oct24366031761
97076408485
102748855281
111190725727
12648704895
1334a660ab3
141c110d5bb
151114d598b
hexa3d833f1

2748855281 has 16 divisors (see below), whose sum is σ = 3029790720. Its totient is φ = 2485319760.

The previous prime is 2748855259. The next prime is 2748855331. The reversal of 2748855281 is 1825588472.

It is a cyclic number.

It is not a de Polignac number, because 2748855281 - 222 = 2744660977 is a prime.

It is a super-2 number, since 2×27488552812 = 15112410711763177922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2748855181) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14171 + ... + 75488.

It is an arithmetic number, because the mean of its divisors is an integer number (189361920).

Almost surely, 22748855281 is an apocalyptic number.

It is an amenable number.

2748855281 is a deficient number, since it is larger than the sum of its proper divisors (280935439).

2748855281 is a wasteful number, since it uses less digits than its factorization.

2748855281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89756.

The product of its digits is 1433600, while the sum is 50.

The square root of 2748855281 is about 52429.5268050361. The cubic root of 2748855281 is about 1400.8252415202.

The spelling of 2748855281 in words is "two billion, seven hundred forty-eight million, eight hundred fifty-five thousand, two hundred eighty-one".

Divisors: 1 23 31 43 713 989 1333 30659 89659 2062157 2779429 3855337 63926867 88672751 119515447 2748855281