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3081507968 = 27711243661
BaseRepresentation
bin1011011110101100…
…0001010010000000
321221202101211020202
42313223001102000
522302331223333
61225435224332
7136235246150
oct26753012200
97852354222
103081507968
111341481600
1271bba80a8
133a15520c6
14213382760
151307e45e8
hexb7ac1480

3081507968 has 192 divisors, whose sum is σ = 7903008960. Its totient is φ = 1170892800.

The previous prime is 3081507967. The next prime is 3081507977. The reversal of 3081507968 is 8697051803.

It is a happy number.

It is a super-3 number, since 3×30815079683 (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3081507967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4661558 + ... + 4662218.

It is an arithmetic number, because the mean of its divisors is an integer number (41161505).

Almost surely, 23081507968 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 3081507968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3951504480).

3081507968 is an abundant number, since it is smaller than the sum of its proper divisors (4821500992).

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

3081507968 is a wasteful number, since it uses less digits than its factorization.

3081507968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747 (or 724 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 3081507968 is about 55511.3318881830. The cubic root of 3081507968 is about 1455.1946800436.

The spelling of 3081507968 in words is "three billion, eighty-one million, five hundred seven thousand, nine hundred sixty-eight".