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64230195456 = 283107607
BaseRepresentation
bin111011110100011010…
…110000000100000000
320010210022110000000000
4323310122300010000
52023020412223311
645301300000000
74432453440030
oct736432600400
9203708400000
1064230195456
11252702a8569
1210546690000
136097c78b1b
1431746098c0
151a0dce9056
hexef46b0100

64230195456 has 396 divisors, whose sum is σ = 220148545792. Its totient is φ = 18321251328.

The previous prime is 64230195409. The next prime is 64230195527. The reversal of 64230195456 is 65459103246.

64230195456 is a `hidden beast` number, since 6 + 4 + 2 + 3 + 0 + 195 + 456 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 43 ways as a sum of consecutive naturals, for example, 105815505 + ... + 105816111.

Almost surely, 264230195456 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 64230195456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110074272896).

64230195456 is an abundant number, since it is smaller than the sum of its proper divisors (155918350336).

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

64230195456 is an frugal number, since it uses more digits than its factorization.

64230195456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 45.

The spelling of 64230195456 in words is "sixty-four billion, two hundred thirty million, one hundred ninety-five thousand, four hundred fifty-six".