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63000516640 = 2551193330053
BaseRepresentation
bin111010101011000111…
…111001100000100000
320000121121120211210011
4322223013321200200
52013011113013030
644535251414304
74360132361425
oct725307714040
9200547524704
1063000516640
112479a170686
12102628b4394
135c30292919
143099191d4c
hexeab1f9820

63000516640 has 48 divisors (see below), whose sum is σ = 148963931928. Its totient is φ = 25179006976.

The previous prime is 63000516583. The next prime is 63000516641. The reversal of 63000516640 is 4661500036.

It can be written as a sum of positive squares in 4 ways, for example, as 33282894096 + 29717622544 = 182436^2 + 172388^2 .

It is not an unprimeable number, because it can be changed into a prime (63000516641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 25854 + ... + 355906.

Almost surely, 263000516640 is an apocalyptic number.

It is an amenable number.

63000516640 is an abundant number, since it is smaller than the sum of its proper divisors (85963415288).

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

63000516640 is a wasteful number, since it uses less digits than its factorization.

63000516640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331261 (or 331253 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 63000516640 in words is "sixty-three billion, five hundred sixteen thousand, six hundred forty".