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2009395200 = 21235231211
BaseRepresentation
bin111011111000100…
…1111000000000000
312012001000212000110
41313301033000000
513103401121300
6531220151320
7100536402021
oct16761170000
95161025013
102009395200
1194128439a
12480b38540
132603b6857
14150c22c48
15bb61b550
hex77c4f000

2009395200 has 312 divisors, whose sum is σ = 6890400256. Its totient is φ = 516096000.

The previous prime is 2009395151. The next prime is 2009395229. The reversal of 2009395200 is 25939002.

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 (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9523095 + ... + 9523305.

Almost surely, 22009395200 is an apocalyptic number.

2009395200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2009395200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3445200128).

2009395200 is an abundant number, since it is smaller than the sum of its proper divisors (4881005056).

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

2009395200 is a wasteful number, since it uses less digits than its factorization.

2009395200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 2009395200 is about 44826.2780074367. The cubic root of 2009395200 is about 1261.8908370578.

The spelling of 2009395200 in words is "two billion, nine million, three hundred ninety-five thousand, two hundred".