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1968768006 = 23794153519
BaseRepresentation
bin111010101011001…
…0000010000000110
312002012120202222120
41311112100100012
513013001034011
6523205310410
766534152262
oct16526202006
95065522876
101968768006
119203555a7
1246b405406
13254b606aa
141496890a2
15b7c93a06
hex75590406

1968768006 has 16 divisors (see below), whose sum is σ = 3987379200. Its totient is φ = 647948808.

The previous prime is 1968767993. The next prime is 1968768019. The reversal of 1968768006 is 6008678691.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1968767993) and next prime (1968768019).

It is a super-2 number, since 2×19687680062 = 7752094922898432072, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1968768006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2076286 + ... + 2077233.

It is an arithmetic number, because the mean of its divisors is an integer number (249211200).

Almost surely, 21968768006 is an apocalyptic number.

1968768006 is an abundant number, since it is smaller than the sum of its proper divisors (2018611194).

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

1968768006 is a wasteful number, since it uses less digits than its factorization.

1968768006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4153603.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 1968768006 is about 44370.8012774167. The cubic root of 1968768006 is about 1253.3283046583.

The spelling of 1968768006 in words is "one billion, nine hundred sixty-eight million, seven hundred sixty-eight thousand, six".

Divisors: 1 2 3 6 79 158 237 474 4153519 8307038 12460557 24921114 328128001 656256002 984384003 1968768006