Search a number
-
+
1912479344 = 24271943961
BaseRepresentation
bin111000111111110…
…0001111001110000
311221021200000110022
41301333201321300
512404043314334
6513435023012
765251543346
oct16177417160
94837600408
101912479344
118a15aa046
1245459aa68
132462b2aa9
14141dd5996
15b2d7582e
hex71fe1e70

1912479344 has 20 divisors (see below), whose sum is σ = 3706875840. Its totient is φ = 955866240.

The previous prime is 1912479343. The next prime is 1912479367. The reversal of 1912479344 is 4439742191.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 1912479295 and 1912479304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912479343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21524 + ... + 65484.

It is an arithmetic number, because the mean of its divisors is an integer number (185343792).

Almost surely, 21912479344 is an apocalyptic number.

It is an amenable number.

1912479344 is a deficient number, since it is larger than the sum of its proper divisors (1794396496).

1912479344 is a wasteful number, since it uses less digits than its factorization.

1912479344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46688 (or 46682 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 1912479344 is about 43731.9030457171. The cubic root of 1912479344 is about 1241.2680714926.

The spelling of 1912479344 in words is "one billion, nine hundred twelve million, four hundred seventy-nine thousand, three hundred forty-four".

Divisors: 1 2 4 8 16 2719 5438 10876 21752 43504 43961 87922 175844 351688 703376 119529959 239059918 478119836 956239672 1912479344