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13403005 = 5711311123
BaseRepresentation
bin110011001000…
…001101111101
3221012221110121
4303020031331
511412344010
61155134541
7221631550
oct63101575
927187417
1013403005
117624970
1245a4451
132a13795
141acc697
15129b3da
hexcc837d

13403005 has 32 divisors (see below), whose sum is σ = 20717568. Its totient is φ = 8078400.

The previous prime is 13402993. The next prime is 13403041. The reversal of 13403005 is 50030431.

It is not a de Polignac number, because 13403005 - 27 = 13402877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13403005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11374 + ... + 12496.

It is an arithmetic number, because the mean of its divisors is an integer number (647424).

Almost surely, 213403005 is an apocalyptic number.

It is an amenable number.

13403005 is a deficient number, since it is larger than the sum of its proper divisors (7314563).

13403005 is a wasteful number, since it uses less digits than its factorization.

13403005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 13403005 is about 3661.0114722574. The cubic root of 13403005 is about 237.5385274524.

Adding to 13403005 its reverse (50030431), we get a palindrome (63433436).

The spelling of 13403005 in words is "thirteen million, four hundred three thousand, five".

Divisors: 1 5 7 11 31 35 55 77 155 217 341 385 1085 1123 1705 2387 5615 7861 11935 12353 34813 39305 61765 86471 174065 243691 382943 432355 1218455 1914715 2680601 13403005