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1995200648 = 2371718111579
BaseRepresentation
bin111011011101100…
…0101100010001000
312011001022200202022
41312323011202020
513041232410043
6525552024012
7100304632340
oct16673054210
95131280668
101995200648
11934269861
12478232008
1325a4869cc
1414cda9d20
15ba265868
hex76ec5888

1995200648 has 64 divisors (see below), whose sum is σ = 4552329600. Its totient is φ = 800271360.

The previous prime is 1995200629. The next prime is 1995200687. The reversal of 1995200648 is 8460025991.

It is a junction number, because it is equal to n+sod(n) for n = 1995200599 and 1995200608.

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, 166523 + ... + 178101.

It is an arithmetic number, because the mean of its divisors is an integer number (71130150).

Almost surely, 21995200648 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 1995200648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2276164800).

1995200648 is an abundant number, since it is smaller than the sum of its proper divisors (2557128952).

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

1995200648 is a wasteful number, since it uses less digits than its factorization.

1995200648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11790 (or 11786 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 1995200648 is about 44667.6689340288. The cubic root of 1995200648 is about 1258.9124419182.

The spelling of 1995200648 in words is "one billion, nine hundred ninety-five million, two hundred thousand, six hundred forty-eight".

Divisors: 1 2 4 7 8 14 17 28 34 56 68 119 136 181 238 362 476 724 952 1267 1448 2534 3077 5068 6154 10136 11579 12308 21539 23158 24616 43078 46316 81053 86156 92632 162106 172312 196843 324212 393686 648424 787372 1377901 1574744 2095799 2755802 4191598 5511604 8383196 11023208 14670593 16766392 29341186 35628583 58682372 71257166 117364744 142514332 249400081 285028664 498800162 997600324 1995200648