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63430140512 = 25171953891301
BaseRepresentation
bin111011000100101110…
…110010001001100000
320001201112222222221102
4323010232302021200
52014401103444022
645050040013532
74403600204234
oct730456621140
9201645888842
1063430140512
112499a72a432
12103627612a8
135c9b2a6c2b
1430da2685c4
1519b3960a92
hexec4bb2260

63430140512 has 192 divisors, whose sum is σ = 143512689600. Its totient is φ = 27412070400.

The previous prime is 63430140511. The next prime is 63430140547. The reversal of 63430140512 is 21504103436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63430140511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48754262 + ... + 48755562.

It is an arithmetic number, because the mean of its divisors is an integer number (747461925).

Almost surely, 263430140512 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 63430140512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71756344800).

63430140512 is an abundant number, since it is smaller than the sum of its proper divisors (80082549088).

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

63430140512 is a wasteful number, since it uses less digits than its factorization.

63430140512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489 (or 1481 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 63430140512 its reverse (21504103436), we get a palindrome (84934243948).

The spelling of 63430140512 in words is "sixty-three billion, four hundred thirty million, one hundred forty thousand, five hundred twelve".