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2660026020 = 223549438969
BaseRepresentation
bin1001111010001100…
…1100011010100100
320212101022022201020
42132203030122210
520421431313040
61115541331140
7122626563621
oct23643143244
96771268636
102660026020
111145573a13
12622a06ab0
1333512b9c2
141b33c9348
151087dacd0
hex9e8cc6a4

2660026020 has 48 divisors (see below), whose sum is σ = 7450410240. Its totient is φ = 709117696.

The previous prime is 2660026013. The next prime is 2660026067. The reversal of 2660026020 is 206200662.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 292096 + ... + 301064.

It is an arithmetic number, because the mean of its divisors is an integer number (155216880).

Almost surely, 22660026020 is an apocalyptic number.

2660026020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2660026020 is an abundant number, since it is smaller than the sum of its proper divisors (4790384220).

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

2660026020 is a wasteful number, since it uses less digits than its factorization.

2660026020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13924 (or 13922 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 2660026020 is about 51575.4400853740. The cubic root of 2660026020 is about 1385.5705000691.

Adding to 2660026020 its reverse (206200662), we get a palindrome (2866226682).

The spelling of 2660026020 in words is "two billion, six hundred sixty million, twenty-six thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 4943 8969 9886 14829 17938 19772 24715 26907 29658 35876 44845 49430 53814 59316 74145 89690 98860 107628 134535 148290 179380 269070 296580 538140 44333767 88667534 133001301 177335068 221668835 266002602 443337670 532005204 665006505 886675340 1330013010 2660026020