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2749983253 = 19931379821
BaseRepresentation
bin1010001111101001…
…0110101000010101
321002122120121211121
42203322112220111
521112443431003
61132513403541
7125101320613
oct24372265025
97078517747
102749983253
111191326136
12648b695b1
1334a967334
141c13246b3
15111659cbd
hexa3e96a15

2749983253 has 4 divisors (see below), whose sum is σ = 2751365068. Its totient is φ = 2748601440.

The previous prime is 2749983251. The next prime is 2749983277. The reversal of 2749983253 is 3523899472.

2749983253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2218127409 + 531855844 = 47097^2 + 23062^2 .

It is a cyclic number.

It is not a de Polignac number, because 2749983253 - 21 = 2749983251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2749983253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2749983251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 687918 + ... + 691903.

It is an arithmetic number, because the mean of its divisors is an integer number (687841267).

Almost surely, 22749983253 is an apocalyptic number.

It is an amenable number.

2749983253 is a deficient number, since it is larger than the sum of its proper divisors (1381815).

2749983253 is a wasteful number, since it uses less digits than its factorization.

2749983253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381814.

The product of its digits is 3265920, while the sum is 52.

The square root of 2749983253 is about 52440.2827318847. The cubic root of 2749983253 is about 1401.0168213369.

The spelling of 2749983253 in words is "two billion, seven hundred forty-nine million, nine hundred eighty-three thousand, two hundred fifty-three".

Divisors: 1 1993 1379821 2749983253