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208974953005 = 57133221142591
BaseRepresentation
bin1100001010011111100…
…0001011101000101101
3201222101211020112111021
43002213320023220231
511410440041444010
6240000214254141
721045410535520
oct3024770135055
9658354215437
10208974953005
1180697a05235
1234601357351
131692483ca60
14a186056bb7
1556813548da
hex30a7e0ba2d

208974953005 has 32 divisors (see below), whose sum is σ = 308737916928. Its totient is φ = 132232262400.

The previous prime is 208974952943. The next prime is 208974953009. The reversal of 208974953005 is 500359479802.

208974953005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 208974953005 - 235 = 174615214637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208974953009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1394260 + ... + 1536850.

It is an arithmetic number, because the mean of its divisors is an integer number (9648059904).

Almost surely, 2208974953005 is an apocalyptic number.

It is an amenable number.

208974953005 is a deficient number, since it is larger than the sum of its proper divisors (99762963923).

208974953005 is a wasteful number, since it uses less digits than its factorization.

208974953005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145837.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 208974953005 in words is "two hundred eight billion, nine hundred seventy-four million, nine hundred fifty-three thousand, five".

Divisors: 1 5 7 13 35 65 91 455 3221 16105 22547 41873 112735 142591 209365 293111 712955 998137 1465555 1853683 4990685 9268415 12975781 64878905 459285611 2296428055 3214999277 5970712943 16074996385 29853564715 41794990601 208974953005