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4122795680 = 25540136421
BaseRepresentation
bin1111010110111100…
…1101111010100000
3101122022202201110022
43311233031322200
531420413430210
61521033453012
7204111120323
oct36557157240
911568681408
104122795680
111826235463
12970871168
135091b6c93
142b179a7ba
15191e2e155
hexf5bcdea0

4122795680 has 48 divisors (see below), whose sum is σ = 9744049224. Its totient is φ = 1648450560.

The previous prime is 4122795637. The next prime is 4122795689. The reversal of 4122795680 is 865972214.

It is a happy number.

It is a Cunningham number, because it is equal to 642092-1.

It can be written as a sum of positive squares in 4 ways, for example, as 3517438864 + 605356816 = 59308^2 + 24604^2 .

It is not an unprimeable number, because it can be changed into a prime (4122795689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638870 + ... + 645290.

Almost surely, 24122795680 is an apocalyptic number.

4122795680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4122795680 is an abundant number, since it is smaller than the sum of its proper divisors (5621253544).

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

4122795680 is a wasteful number, since it uses less digits than its factorization.

4122795680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10449 (or 10441 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 4122795680 is about 64208.9999922129. Note that the first 5 decimals coincide. The cubic root of 4122795680 is about 1603.4814400734.

The spelling of 4122795680 in words is "four billion, one hundred twenty-two million, seven hundred ninety-five thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 4013 6421 8026 12842 16052 20065 25684 32104 32105 40130 51368 64208 64210 80260 102736 128416 128420 160520 205472 256840 321040 513680 642080 1027360 25767473 51534946 103069892 128837365 206139784 257674730 412279568 515349460 824559136 1030698920 2061397840 4122795680