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3047838749 = 3123321811
BaseRepresentation
bin1011010110101010…
…0101010000011101
321212102001020202122
42311222211100131
522220221314444
61222233432325
7135346126154
oct26552452035
97772036678
103047838749
1113244753aa
1271086b6a5
13397593ca7
1420cada59b
1512c8934ee
hexb5aa541d

3047838749 has 12 divisors (see below), whose sum is σ = 3161461632. Its totient is φ = 2935240800.

The previous prime is 3047838743. The next prime is 3047838757. The reversal of 3047838749 is 9478387403.

3047838749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3047838749 - 224 = 3031061533 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 3047838749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3047838743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1682054 + ... + 1683864.

It is an arithmetic number, because the mean of its divisors is an integer number (263455136).

Almost surely, 23047838749 is an apocalyptic number.

It is an amenable number.

3047838749 is a deficient number, since it is larger than the sum of its proper divisors (113622883).

3047838749 is an equidigital number, since it uses as much as digits as its factorization.

3047838749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308 (or 2075 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 53.

The square root of 3047838749 is about 55207.2345712045. The cubic root of 3047838749 is about 1449.8753359331.

The spelling of 3047838749 in words is "three billion, forty-seven million, eight hundred thirty-eight thousand, seven hundred forty-nine".

Divisors: 1 31 233 1811 7223 54289 56141 421963 1682959 13080853 98317379 3047838749