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3031807968 = 25357273109
BaseRepresentation
bin1011010010110101…
…1011011111100000
321211021212210200000
42310231123133200
522202120323333
61220502100000
7135062641200
oct26455333740
97737783600
103031807968
111316416222
1270741a600
13394170417
1420a926400
1512b278713
hexb4b5b7e0

3031807968 has 432 divisors, whose sum is σ = 10639989360. Its totient is φ = 846526464.

The previous prime is 3031807963. The next prime is 3031808027. The reversal of 3031807968 is 8697081303.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (432).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031807963) 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, 27814698 + ... + 27814806.

It is an arithmetic number, because the mean of its divisors is an integer number (24629605).

Almost surely, 23031807968 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 3031807968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5319994680).

3031807968 is an abundant number, since it is smaller than the sum of its proper divisors (7608181392).

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

3031807968 is a wasteful number, since it uses less digits than its factorization.

3031807968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 3031807968 is about 55061.8558350515. The cubic root of 3031807968 is about 1447.3288863207.

The spelling of 3031807968 in words is "three billion, thirty-one million, eight hundred seven thousand, nine hundred sixty-eight".