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2067995720 = 235719241499
BaseRepresentation
bin111101101000011…
…0001110001001000
312100010022001211002
41323100301301020
513213401330340
6541112154132
7102150450020
oct17320616110
95303261732
102067995720
1197136987a
12498698948
1326c59380b
14158918a80
15c1844715
hex7b431c48

2067995720 has 192 divisors, whose sum is σ = 5760720000. Its totient is φ = 654013440.

The previous prime is 2067995693. The next prime is 2067995729. The reversal of 2067995720 is 275997602.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2067995729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4144031 + ... + 4144529.

It is an arithmetic number, because the mean of its divisors is an integer number (30003750).

Almost surely, 22067995720 is an apocalyptic number.

2067995720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2067995720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2880360000).

2067995720 is an abundant number, since it is smaller than the sum of its proper divisors (3692724280).

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

2067995720 is a wasteful number, since it uses less digits than its factorization.

2067995720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 2067995720 is about 45475.2209450377. The cubic root of 2067995720 is about 1274.0404355169.

The spelling of 2067995720 in words is "two billion, sixty-seven million, nine hundred ninety-five thousand, seven hundred twenty".