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2068860288420 = 2232511493668269
BaseRepresentation
bin11110000110110001101…
…011101011110110100100
321022210002102121221110200
4132012301223223312210
5232344011213212140
64222230555550500
7302320200204312
oct36066153536644
97283072557420
102068860288420
11728442774762
12294b6115b430
13120128835873
14721c1d8b0b2
1538c38511030
hex1e1b1aebda4

2068860288420 has 36 divisors (see below), whose sum is σ = 6275542875420. Its totient is φ = 551696076864.

The previous prime is 2068860288377. The next prime is 2068860288449. The reversal of 2068860288420 is 248820688602.

It is a happy number.

2068860288420 is a `hidden beast` number, since 2 + 0 + 6 + 8 + 8 + 602 + 8 + 8 + 4 + 20 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 337830637824 + 1731029650596 = 581232^2 + 1315686^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5746833955 + ... + 5746834314.

Almost surely, 22068860288420 is an apocalyptic number.

2068860288420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2068860288420 is an abundant number, since it is smaller than the sum of its proper divisors (4206682587000).

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

2068860288420 is a wasteful number, since it uses less digits than its factorization.

2068860288420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11493668284 (or 11493668279 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 54.

The spelling of 2068860288420 in words is "two trillion, sixty-eight billion, eight hundred sixty million, two hundred eighty-eight thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 11493668269 22987336538 34481004807 45974673076 57468341345 68962009614 103443014421 114936682690 137924019228 172405024035 206886028842 229873365380 344810048070 413772057684 517215072105 689620096140 1034430144210 2068860288420