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91742939003 = 1943311361069
BaseRepresentation
bin101010101110001001…
…1100010011101111011
322202210201112011221202
41111130103202131323
53000342143022003
6110051321324415
76425322054242
oct1253423423573
9282721464852
1091742939003
11359a9551a51
121594463670b
138860c54031
14462459d959
1525be3b3088
hex155c4e277b

91742939003 has 16 divisors (see below), whose sum is σ = 99135379200. Its totient is φ = 84619896480.

The previous prime is 91742938961. The next prime is 91742939039. The reversal of 91742939003 is 30093924719.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 91742939003 - 226 = 91675830139 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91742939053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73553 + ... + 434621.

It is an arithmetic number, because the mean of its divisors is an integer number (6195961200).

Almost surely, 291742939003 is an apocalyptic number.

91742939003 is a deficient number, since it is larger than the sum of its proper divisors (7392440197).

91742939003 is a wasteful number, since it uses less digits than its factorization.

91742939003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361442.

The product of its (nonzero) digits is 367416, while the sum is 47.

The spelling of 91742939003 in words is "ninety-one billion, seven hundred forty-two million, nine hundred thirty-nine thousand, three".

Divisors: 1 19 43 311 817 5909 13373 254087 361069 6860311 15525967 112292459 294993373 2133556721 4828575737 91742939003