Search a number
-
+
1992934788 = 2231322955787
BaseRepresentation
bin111011011001001…
…1100010110000100
312010220001120120120
41312302130112010
513040142403123
6525431301540
7100246444335
oct16662342604
95126046516
101992934788
11932a61449
1247751a8b0
13259b72570
1414c97a28c
15b9e692e3
hex76c9c584

1992934788 has 48 divisors (see below), whose sum is σ = 5029846080. Its totient is φ = 610521984.

The previous prime is 1992934771. The next prime is 1992934793. The reversal of 1992934788 is 8874392991.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7831 + ... + 63617.

It is an arithmetic number, because the mean of its divisors is an integer number (104788460).

Almost surely, 21992934788 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1992934788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2514923040).

1992934788 is an abundant number, since it is smaller than the sum of its proper divisors (3036911292).

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

1992934788 is a wasteful number, since it uses less digits than its factorization.

1992934788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56036 (or 56034 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 60.

The square root of 1992934788 is about 44642.2981935294. The cubic root of 1992934788 is about 1258.4356979115.

The spelling of 1992934788 in words is "one billion, nine hundred ninety-two million, nine hundred thirty-four thousand, seven hundred eighty-eight".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 229 458 687 916 1374 2748 2977 5954 8931 11908 17862 35724 55787 111574 167361 223148 334722 669444 725231 1450462 2175693 2900924 4351386 8702772 12775223 25550446 38325669 51100892 76651338 153302676 166077899 332155798 498233697 664311596 996467394 1992934788