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64070746884 = 2232421872
BaseRepresentation
bin111011101010111010…
…100000001100000100
320010101012102011200100
4323222322200030010
52022204102400014
645233402244100
74425506235264
oct735272401404
9203335364610
1064070746884
11251992a2491
12105011b6630
136070c1c361
14315b3817a4
1519eed00009
hexeeaea0304

64070746884 has 27 divisors (see below), whose sum is σ = 161960449287. Its totient is φ = 21356409384.

The previous prime is 64070746877. The next prime is 64070746903. The reversal of 64070746884 is 48864707046.

The square root of 64070746884 is 253122.

It is a perfect power (a square), and thus also a powerful number.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 64070746884.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1497639 + ... + 1539825.

Almost surely, 264070746884 is an apocalyptic number.

64070746884 is the 253122-nd square number.

It is an amenable number.

64070746884 is an abundant number, since it is smaller than the sum of its proper divisors (97889702403).

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

64070746884 is an frugal number, since it uses more digits than its factorization.

64070746884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84384 (or 42192 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 54.

The spelling of 64070746884 in words is "sixty-four billion, seventy million, seven hundred forty-six thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 18 36 42187 84374 126561 168748 253122 379683 506244 759366 1518732 1779742969 3559485938 5339228907 7118971876 10678457814 16017686721 21356915628 32035373442 64070746884