Search a number
-
+
1920536013 = 31171819691
BaseRepresentation
bin111001001111001…
…0000110111001101
311221211211100010110
41302132100313031
512413124123023
6514323430233
765410200234
oct16236206715
94854740113
101920536013
118a6102150
12457225379
13247b73c56
141430d1b1b
15b3917a93
hex72790dcd

1920536013 has 16 divisors (see below), whose sum is σ = 2832855552. Its totient is φ = 1147566000.

The previous prime is 1920535973. The next prime is 1920536021. The reversal of 1920536013 is 3106350291.

It is not a de Polignac number, because 1920536013 - 29 = 1920535501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920536113) 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 15 ways as a sum of consecutive naturals, for example, 407503 + ... + 412188.

It is an arithmetic number, because the mean of its divisors is an integer number (177053472).

Almost surely, 21920536013 is an apocalyptic number.

It is an amenable number.

1920536013 is a deficient number, since it is larger than the sum of its proper divisors (912319539).

1920536013 is a wasteful number, since it uses less digits than its factorization.

1920536013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819776.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 1920536013 is about 43823.9205571569. The cubic root of 1920536013 is about 1243.0086525240.

The spelling of 1920536013 in words is "one billion, nine hundred twenty million, five hundred thirty-six thousand, thirteen".

Divisors: 1 3 11 33 71 213 781 2343 819691 2459073 9016601 27049803 58198061 174594183 640178671 1920536013