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2127755851420 = 225577184380923
BaseRepresentation
bin11110111101101000001…
…000011011011010011100
321112102002222000112110211
4132331220020123122130
5234330120444221140
64305251052142204
7306503526216133
oct36755010333234
97472088015424
102127755851420
11750415786971
122a4459167964
1312585351a624
1474dabca891a
153a533d032ea
hex1ef6821b69c

2127755851420 has 24 divisors (see below), whose sum is σ = 4476031311024. Its totient is φ = 849627288576.

The previous prime is 2127755851369. The next prime is 2127755851423. The reversal of 2127755851420 is 241585577212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2127755851423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92178922 + ... + 92202001.

It is an arithmetic number, because the mean of its divisors is an integer number (186501304626).

Almost surely, 22127755851420 is an apocalyptic number.

2127755851420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2127755851420 is an abundant number, since it is smaller than the sum of its proper divisors (2348275459604).

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

2127755851420 is a wasteful number, since it uses less digits than its factorization.

2127755851420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184381509 (or 184381507 counting only the distinct ones).

The product of its (nonzero) digits is 1568000, while the sum is 49.

The spelling of 2127755851420 in words is "two trillion, one hundred twenty-seven billion, seven hundred fifty-five million, eight hundred fifty-one thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 577 1154 2308 2885 5770 11540 184380923 368761846 737523692 921904615 1843809230 3687618460 106387792571 212775585142 425551170284 531938962855 1063877925710 2127755851420