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30395492064 = 2532729312541
BaseRepresentation
bin11100010011101101…
…100110011011100000
32220110022110222111100
4130103231212123200
5444222221221224
621544040514400
72124141263640
oct342355463340
986408428440
1030395492064
1111988510083
125a8347ba00
132b352b8882
141684b98520
15bcd6ebac9
hex713b666e0

30395492064 has 432 divisors, whose sum is σ = 105789771360. Its totient is φ = 8099481600.

The previous prime is 30395492047. The next prime is 30395492069. The reversal of 30395492064 is 46029459303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30395492069) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 56183634 + ... + 56184174.

It is an arithmetic number, because the mean of its divisors is an integer number (244883730).

Almost surely, 230395492064 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 30395492064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52894885680).

30395492064 is an abundant number, since it is smaller than the sum of its proper divisors (75394279296).

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

30395492064 is a wasteful number, since it uses less digits than its factorization.

30395492064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The spelling of 30395492064 in words is "thirty billion, three hundred ninety-five million, four hundred ninety-two thousand, sixty-four".