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2748856741 = 9192991139
BaseRepresentation
bin1010001111011000…
…0011100110100101
321002120110101112221
42203312003212211
521112201403431
61132433312341
7125055616411
oct24366034645
97076411487
102748856741
111190726834
126487056b1
1334a661667
141c110dd41
151114d6111
hexa3d839a5

2748856741 has 4 divisors (see below), whose sum is σ = 2751848800. Its totient is φ = 2745864684.

The previous prime is 2748856729. The next prime is 2748856751. The reversal of 2748856741 is 1476588472.

2748856741 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2748856741 - 219 = 2748332453 is a prime.

It is a super-2 number, since 2×27488567412 = 15112426765082282162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2748856751) 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, 1494651 + ... + 1496488.

It is an arithmetic number, because the mean of its divisors is an integer number (687962200).

Almost surely, 22748856741 is an apocalyptic number.

It is an amenable number.

2748856741 is a deficient number, since it is larger than the sum of its proper divisors (2992059).

2748856741 is an equidigital number, since it uses as much as digits as its factorization.

2748856741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992058.

The product of its digits is 3010560, while the sum is 52.

The square root of 2748856741 is about 52429.5407284863. The cubic root of 2748856741 is about 1400.8254895271.

The spelling of 2748856741 in words is "two billion, seven hundred forty-eight million, eight hundred fifty-six thousand, seven hundred forty-one".

Divisors: 1 919 2991139 2748856741