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2748071249 = 71146177417
BaseRepresentation
bin1010001111001100…
…0011110101010001
321002111222111001122
42203303003311101
521112001234444
61132404412025
7125046135350
oct24363036521
97074874048
102748071249
11119023a670
126483a7015
1334a447c81
141c0d87997
151113cd4ee
hexa3cc3d51

2748071249 has 16 divisors (see below), whose sum is σ = 3433643136. Its totient is φ = 2136681600.

The previous prime is 2748071243. The next prime is 2748071273. The reversal of 2748071249 is 9421708472.

2748071249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2748071249 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2748071243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3212 + ... + 74205.

It is an arithmetic number, because the mean of its divisors is an integer number (214602696).

Almost surely, 22748071249 is an apocalyptic number.

It is an amenable number.

2748071249 is a deficient number, since it is larger than the sum of its proper divisors (685571887).

2748071249 is a wasteful number, since it uses less digits than its factorization.

2748071249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77896.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 2748071249 is about 52422.0492636448. The cubic root of 2748071249 is about 1400.6920471370.

The spelling of 2748071249 in words is "two billion, seven hundred forty-eight million, seventy-one thousand, two hundred forty-nine".

Divisors: 1 7 11 77 461 3227 5071 35497 77417 541919 851587 5961109 35689237 249824659 392581607 2748071249