Search a number
-
+
1893084349 = 13413551753
BaseRepresentation
bin111000011010110…
…0010110010111101
311212221011122112011
41300311202302331
512334112144344
6511503211221
764624644232
oct16065426275
94787148464
101893084349
11891662322
12449ba6b11
13242281b70
1413d5c7789
15b12e3d34
hex70d62cbd

1893084349 has 8 divisors (see below), whose sum is σ = 2088431352. Its totient is φ = 1704840960.

The previous prime is 1893084343. The next prime is 1893084353. The reversal of 1893084349 is 9434803981.

It can be written as a sum of positive squares in 4 ways, for example, as 70392100 + 1822692249 = 8390^2 + 42693^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1893084349 - 23 = 1893084341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1893084341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1775344 + ... + 1776409.

It is an arithmetic number, because the mean of its divisors is an integer number (261053919).

Almost surely, 21893084349 is an apocalyptic number.

It is an amenable number.

1893084349 is a deficient number, since it is larger than the sum of its proper divisors (195347003).

1893084349 is a wasteful number, since it uses less digits than its factorization.

1893084349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551807.

The product of its (nonzero) digits is 746496, while the sum is 49.

The square root of 1893084349 is about 43509.5891614711. The cubic root of 1893084349 is about 1237.0577896094.

The spelling of 1893084349 in words is "one billion, eight hundred ninety-three million, eighty-four thousand, three hundred forty-nine".

Divisors: 1 13 41 533 3551753 46172789 145621873 1893084349