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13550055001 = 78931768611
BaseRepresentation
bin11001001111010010…
…10110111001011001
31021222022211010001221
430213221112321121
5210222303230001
610120320412041
7656532365350
oct144751267131
937868733057
1013550055001
11582371a96a
122761a77021
13137c331232
14927830997
155448a61a1
hex327a56e59

13550055001 has 16 divisors (see below), whose sum is σ = 15709403520. Its totient is φ = 11447441280.

The previous prime is 13550054993. The next prime is 13550055017. The reversal of 13550055001 is 10055005531.

It is a cyclic number.

It is not a de Polignac number, because 13550055001 - 23 = 13550054993 is a prime.

It is a super-2 number, since 2×135500550012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13550055401) 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 15 ways as a sum of consecutive naturals, for example, 163186 + ... + 231796.

It is an arithmetic number, because the mean of its divisors is an integer number (981837720).

Almost surely, 213550055001 is an apocalyptic number.

It is an amenable number.

13550055001 is a deficient number, since it is larger than the sum of its proper divisors (2159348519).

13550055001 is an equidigital number, since it uses as much as digits as its factorization.

13550055001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69024.

The product of its (nonzero) digits is 1875, while the sum is 25.

The spelling of 13550055001 in words is "thirteen billion, five hundred fifty million, fifty-five thousand, one".

Divisors: 1 7 89 317 623 2219 28213 68611 197491 480277 6106379 21749687 42744653 152247809 1935722143 13550055001