Search a number
-
+
1920419941 = 11595329327
BaseRepresentation
bin111001001110111…
…0100100001100101
311221211121102220111
41302131310201211
512413111414231
6514321133021
765406204646
oct16235644145
94854542814
101920419941
118a6032a20
1245718a171
13247b3317b
141430a16cd
15b38e34b1
hex72774865

1920419941 has 8 divisors (see below), whose sum is σ = 2095426944. Its totient is φ = 1745483520.

The previous prime is 1920419939. The next prime is 1920419957. The reversal of 1920419941 is 1499140291.

It is the 17891-st star number.

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

It is not a de Polignac number, because 1920419941 - 21 = 1920419939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1920419894 and 1920419903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920413941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50820 + ... + 80146.

It is an arithmetic number, because the mean of its divisors is an integer number (261928368).

Almost surely, 21920419941 is an apocalyptic number.

1920419941 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1920419941 is a deficient number, since it is larger than the sum of its proper divisors (175007003).

1920419941 is a wasteful number, since it uses less digits than its factorization.

1920419941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35291.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 1920419941 is about 43822.5962375576. The cubic root of 1920419941 is about 1242.9836106597.

The spelling of 1920419941 in words is "one billion, nine hundred twenty million, four hundred nineteen thousand, nine hundred forty-one".

Divisors: 1 11 5953 29327 65483 322597 174583631 1920419941