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2019855189377 = 23934253246731
BaseRepresentation
bin11101011001001000110…
…000000100010110000001
321011002121011212222101102
4131121020300010112001
5231043130412030002
64143524134344145
7265633615554404
oct35311060042601
97132534788342
102019855189377
11709685662503
122875654bb055
13118618c3913c
146da9383bd3b
153781b191a02
hex1d648c04581

2019855189377 has 8 divisors (see below), whose sum is σ = 2028373902720. Its totient is φ = 2011337038480.

The previous prime is 2019855189349. The next prime is 2019855189413. The reversal of 2019855189377 is 7739815589102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2019855189377 - 210 = 2019855188353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2019855189307) 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, 8063102 + ... + 8309832.

It is an arithmetic number, because the mean of its divisors is an integer number (253546737840).

Almost surely, 22019855189377 is an apocalyptic number.

It is an amenable number.

2019855189377 is a deficient number, since it is larger than the sum of its proper divisors (8518713343).

2019855189377 is a wasteful number, since it uses less digits than its factorization.

2019855189377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281223.

The product of its (nonzero) digits is 38102400, while the sum is 65.

The spelling of 2019855189377 in words is "two trillion, nineteen billion, eight hundred fifty-five million, one hundred eighty-nine thousand, three hundred seventy-seven".

Divisors: 1 239 34253 246731 8186467 58968709 8451276943 2019855189377