Search a number
-
+
1934845830 = 232521498287
BaseRepresentation
bin111001101010011…
…0110011110000110
311222211202100111200
41303110312132012
512430310031310
6515554243330
765642626641
oct16324663606
94884670450
101934845830
11903196345
1245bb86546
1324ab143b8
14144d78a58
15b4ce29c0
hex73536786

1934845830 has 24 divisors (see below), whose sum is σ = 5030599392. Its totient is φ = 515958864.

The previous prime is 1934845793. The next prime is 1934845877. The reversal of 1934845830 is 385484391.

1934845830 is a `hidden beast` number, since 1 + 93 + 484 + 5 + 83 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 10749054 + ... + 10749233.

It is an arithmetic number, because the mean of its divisors is an integer number (209608308).

Almost surely, 21934845830 is an apocalyptic number.

1934845830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1934845830 is an abundant number, since it is smaller than the sum of its proper divisors (3095753562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1934845830 is a wasteful number, since it uses less digits than its factorization.

1934845830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21498300 (or 21498297 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 1934845830 is about 43986.8824764838. The cubic root of 1934845830 is about 1246.0882148527.

The spelling of 1934845830 in words is "one billion, nine hundred thirty-four million, eight hundred forty-five thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 21498287 42996574 64494861 107491435 128989722 193484583 214982870 322474305 386969166 644948610 967422915 1934845830