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1631426355 = 3251319146777
BaseRepresentation
bin110000100111101…
…1001011100110011
311012200211001020100
41201033121130303
511320121120410
6425515043443
755266616026
oct14117313463
94180731210
101631426355
11767996849
12396440583
131cccba050
141169551bd
159835a8c0
hex613d9733

1631426355 has 48 divisors (see below), whose sum is σ = 3205631520. Its totient is φ = 760886784.

The previous prime is 1631426339. The next prime is 1631426389. The reversal of 1631426355 is 5536241361.

1631426355 is a `hidden beast` number, since 1 + 6 + 3 + 14 + 2 + 635 + 5 = 666.

It is not a de Polignac number, because 1631426355 - 24 = 1631426339 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 62274 + ... + 84503.

It is an arithmetic number, because the mean of its divisors is an integer number (66783990).

Almost surely, 21631426355 is an apocalyptic number.

1631426355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1631426355 is a deficient number, since it is larger than the sum of its proper divisors (1574205165).

1631426355 is a wasteful number, since it uses less digits than its factorization.

1631426355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146820 (or 146817 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 1631426355 is about 40390.9192145957. The cubic root of 1631426355 is about 1177.2151013984.

The spelling of 1631426355 in words is "one billion, six hundred thirty-one million, four hundred twenty-six thousand, three hundred fifty-five".

Divisors: 1 3 5 9 13 15 19 39 45 57 65 95 117 171 195 247 285 585 741 855 1235 2223 3705 11115 146777 440331 733885 1320993 1908101 2201655 2788763 5724303 6604965 8366289 9540505 13943815 17172909 25098867 28621515 36253919 41831445 85864545 108761757 125494335 181269595 326285271 543808785 1631426355