Search a number
-
+
1930001880 = 233516083349
BaseRepresentation
bin111001100001001…
…0111110111011000
311222111122020212010
41303002113313120
512423040030010
6515302345520
765553513432
oct16302276730
94874566763
101930001880
11900487a84
1245a42b2a0
13249b09661
14144477652
15b4687620
hex73097dd8

1930001880 has 32 divisors (see below), whose sum is σ = 5790006000. Its totient is φ = 514667136.

The previous prime is 1930001873. The next prime is 1930001929. The reversal of 1930001880 is 881000391.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 7 ways as a sum of consecutive naturals, for example, 8041555 + ... + 8041794.

Almost surely, 21930001880 is an apocalyptic number.

1930001880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1930001880 is an abundant number, since it is smaller than the sum of its proper divisors (3860004120).

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

1930001880 is a wasteful number, since it uses less digits than its factorization.

1930001880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16083363 (or 16083359 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1930001880 is about 43931.7866697907. The cubic root of 1930001880 is about 1245.0474716177.

The spelling of 1930001880 in words is "one billion, nine hundred thirty million, one thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 16083349 32166698 48250047 64333396 80416745 96500094 128666792 160833490 193000188 241250235 321666980 386000376 482500470 643333960 965000940 1930001880