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13883143 = 107129749
BaseRepresentation
bin110100111101…
…011100000111
3222010100002111
4310331130013
512023230033
61213321451
7226001431
oct64753407
928110074
1013883143
11792267a
124796287
132b511a1
141bb5651
1513437cd
hexd3d707

13883143 has 4 divisors (see below), whose sum is σ = 14013000. Its totient is φ = 13753288.

The previous prime is 13883119. The next prime is 13883159. The reversal of 13883143 is 34138831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13883143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13883183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64768 + ... + 64981.

It is an arithmetic number, because the mean of its divisors is an integer number (3503250).

Almost surely, 213883143 is an apocalyptic number.

13883143 is a deficient number, since it is larger than the sum of its proper divisors (129857).

13883143 is a wasteful number, since it uses less digits than its factorization.

13883143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129856.

The product of its digits is 6912, while the sum is 31.

The square root of 13883143 is about 3726.0089908641. The cubic root of 13883143 is about 240.3417757892.

The spelling of 13883143 in words is "thirteen million, eight hundred eighty-three thousand, one hundred forty-three".

Divisors: 1 107 129749 13883143