Search a number
-
+
2739791345 = 53491570081
BaseRepresentation
bin1010001101001101…
…1110010111110001
321001221101211011112
42203103132113301
521102341310340
61131511123105
7124615561604
oct24323362761
97057354145
102739791345
1111865a4875
12645673495
13348809315
141bdc3033b
151107e5065
hexa34de5f1

2739791345 has 8 divisors (see below), whose sum is σ = 3297172200. Its totient is φ = 2185551360.

The previous prime is 2739791297. The next prime is 2739791357. The reversal of 2739791345 is 5431979372.

It can be written as a sum of positive squares in 4 ways, for example, as 19855936 + 2719935409 = 4456^2 + 52153^2 .

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

It is not a de Polignac number, because 2739791345 - 216 = 2739725809 is a prime.

It is a super-2 number, since 2×27397913452 = 15012913228273818050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2739791293 and 2739791302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783296 + ... + 786785.

It is an arithmetic number, because the mean of its divisors is an integer number (412146525).

Almost surely, 22739791345 is an apocalyptic number.

It is an amenable number.

2739791345 is a deficient number, since it is larger than the sum of its proper divisors (557380855).

2739791345 is a wasteful number, since it uses less digits than its factorization.

2739791345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570435.

The product of its digits is 1428840, while the sum is 50.

The square root of 2739791345 is about 52343.0162008266. The cubic root of 2739791345 is about 1399.2838760998.

The spelling of 2739791345 in words is "two billion, seven hundred thirty-nine million, seven hundred ninety-one thousand, three hundred forty-five".

Divisors: 1 5 349 1745 1570081 7850405 547958269 2739791345