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13030143 = 3717219113
BaseRepresentation
bin110001101101…
…001011111111
3220111222222220
4301231023333
511313431033
61143140423
7215516520
oct61551377
926458886
1013030143
11739a815
124444713
132912b59
141a32847
151225bb3
hexc6d2ff

13030143 has 48 divisors (see below), whose sum is σ = 22398720. Its totient is φ = 6580224.

The previous prime is 13030123. The next prime is 13030151. The reversal of 13030143 is 34103031.

It is not a de Polignac number, because 13030143 - 26 = 13030079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13030123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115255 + ... + 115367.

It is an arithmetic number, because the mean of its divisors is an integer number (466640).

Almost surely, 213030143 is an apocalyptic number.

13030143 is a deficient number, since it is larger than the sum of its proper divisors (9368577).

13030143 is a wasteful number, since it uses less digits than its factorization.

13030143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 13030143 is about 3609.7289371918. The cubic root of 13030143 is about 235.3150625461.

Adding to 13030143 its reverse (34103031), we get a palindrome (47133174).

The spelling of 13030143 in words is "thirteen million, thirty thousand, one hundred forty-three".

Divisors: 1 3 7 17 19 21 51 57 113 119 133 289 323 339 357 399 791 867 969 1921 2023 2147 2261 2373 5491 5763 6069 6441 6783 13447 15029 16473 32657 36499 38437 40341 45087 97971 109497 115311 228599 255493 620483 685797 766479 1861449 4343381 13030143