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2005110880 = 255149151557
BaseRepresentation
bin111011110000011…
…1001000001100000
312011201222012000221
41313200321001200
513101302022010
6530544252424
7100455106213
oct16740710140
95151865027
102005110880
11939918533
1247b611114
1325c546756
1415042977a
15bb071dda
hex77839060

2005110880 has 96 divisors (see below), whose sum is σ = 4809067200. Its totient is φ = 789964800.

The previous prime is 2005110871. The next prime is 2005110889. The reversal of 2005110880 is 880115002.

It is an interprime number because it is at equal distance from previous prime (2005110871) and next prime (2005110889).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2005110889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3599562 + ... + 3600118.

It is an arithmetic number, because the mean of its divisors is an integer number (50094450).

Almost surely, 22005110880 is an apocalyptic number.

2005110880 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 2005110880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2404533600).

2005110880 is an abundant number, since it is smaller than the sum of its proper divisors (2803956320).

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

2005110880 is a wasteful number, since it uses less digits than its factorization.

2005110880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 2005110880 is about 44778.4644667501. The cubic root of 2005110880 is about 1260.9933545587.

Adding to 2005110880 its reverse (880115002), we get a palindrome (2885225882).

The spelling of 2005110880 in words is "two billion, five million, one hundred ten thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 149 151 160 298 302 557 596 604 745 755 1114 1192 1208 1490 1510 2228 2384 2416 2785 2980 3020 4456 4768 4832 5570 5960 6040 8912 11140 11920 12080 17824 22280 22499 23840 24160 44560 44998 82993 84107 89120 89996 112495 165986 168214 179992 224990 331972 336428 359984 414965 420535 449980 663944 672856 719968 829930 841070 899960 1327888 1345712 1659860 1682140 1799920 2655776 2691424 3319720 3364280 3599840 6639440 6728560 12531943 13278880 13457120 25063886 50127772 62659715 100255544 125319430 200511088 250638860 401022176 501277720 1002555440 2005110880