Search a number
-
+
994471992 = 23347321023
BaseRepresentation
bin111011010001100…
…111000000111000
32120022021102010000
4323101213000320
54014041100432
6242402553000
733433605153
oct7321470070
92508242100
10994471992
11470398588
12239068760
1312b052c87
149610cc9a
155c48d57c
hex3b467038

994471992 has 80 divisors (see below), whose sum is σ = 2823733440. Its totient is φ = 326934144.

The previous prime is 994471979. The next prime is 994472021. The reversal of 994471992 is 299174499.

994471992 is a `hidden beast` number, since 9 + 9 + 447 + 199 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36793 + ... + 57815.

It is an arithmetic number, because the mean of its divisors is an integer number (35296668).

Almost surely, 2994471992 is an apocalyptic number.

994471992 is the 15768-th decagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 994471992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1411866720).

994471992 is an abundant number, since it is smaller than the sum of its proper divisors (1829261448).

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

994471992 is a wasteful number, since it uses less digits than its factorization.

994471992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21114 (or 21101 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 994471992 is about 31535.2499910814. The cubic root of 994471992 is about 998.1539247700.

The spelling of 994471992 in words is "nine hundred ninety-four million, four hundred seventy-one thousand, nine hundred ninety-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 73 81 108 146 162 216 219 292 324 438 584 648 657 876 1314 1752 1971 2628 3942 5256 5913 7884 11826 15768 21023 23652 42046 47304 63069 84092 126138 168184 189207 252276 378414 504552 567621 756828 1135242 1513656 1534679 1702863 2270484 3069358 3405726 4540968 4604037 6138716 6811452 9208074 12277432 13622904 13812111 18416148 27624222 36832296 41436333 55248444 82872666 110496888 124308999 165745332 248617998 331490664 497235996 994471992