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2012075520 = 29357132879
BaseRepresentation
bin111011111101101…
…1101011000000000
312012020002000201120
41313323131120000
513110042404040
6531353432240
7100601234250
oct16773353000
95166060646
102012075520
11942845134
12481a0b680
13260b14840
1415131d960
15bb99a7d0
hex77edd600

2012075520 has 320 divisors, whose sum is σ = 7919493120. Its totient is φ = 424378368.

The previous prime is 2012075519. The next prime is 2012075551. The reversal of 2012075520 is 255702102.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (24).

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 31 ways as a sum of consecutive naturals, for example, 697441 + ... + 700319.

It is an arithmetic number, because the mean of its divisors is an integer number (24748416).

Almost surely, 22012075520 is an apocalyptic number.

2012075520 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 2012075520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3959746560).

2012075520 is an abundant number, since it is smaller than the sum of its proper divisors (5907417600).

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

2012075520 is a wasteful number, since it uses less digits than its factorization.

2012075520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2925 (or 2909 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 2012075520 is about 44856.1647937048. The cubic root of 2012075520 is about 1262.4516639338.

Adding to 2012075520 its reverse (255702102), we get a palindrome (2267777622).

The spelling of 2012075520 in words is "two billion, twelve million, seventy-five thousand, five hundred twenty".