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20006197200 = 243252113143379
BaseRepresentation
bin10010101000011101…
…100101011111010000
31220122021012010012200
4102220131211133100
5311433041302300
613105110123200
71305525604353
oct225035453720
956567163180
1020006197200
118536a82080
123a64050500
131b6aa67612
14d7b05a29a
157c1592200
hex4a87657d0

20006197200 has 720 divisors, whose sum is σ = 80211056640. Its totient is φ = 4572288000.

The previous prime is 20006197171. The next prime is 20006197241. The reversal of 20006197200 is 279160002.

20006197200 is a `hidden beast` number, since 20 + 0 + 0 + 619 + 7 + 20 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

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 143 ways as a sum of consecutive naturals, for example, 52786611 + ... + 52786989.

Almost surely, 220006197200 is an apocalyptic number.

20006197200 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 20006197200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40105528320).

20006197200 is an abundant number, since it is smaller than the sum of its proper divisors (60204859440).

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

20006197200 is a wasteful number, since it uses less digits than its factorization.

20006197200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488 (or 474 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The spelling of 20006197200 in words is "twenty billion, six million, one hundred ninety-seven thousand, two hundred".