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6142143 = 37292483
BaseRepresentation
bin10111011011100010111111
3102120001102210
4113123202333
53033022033
6335351503
7103131060
oct27334277
912501383
106142143
113515757
122082593
131370907
14b5c567
15814d63
hex5db8bf

6142143 has 8 divisors (see below), whose sum is σ = 9359488. Its totient is φ = 3509784.

The previous prime is 6142141. The next prime is 6142153. The reversal of 6142143 is 3412416.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6142143 - 21 = 6142141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 292483 = 6142143 / (6 + 1 + 4 + 2 + 1 + 4 + 3).

It is a Duffinian number.

6142143 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6142141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146221 + ... + 146262.

It is an arithmetic number, because the mean of its divisors is an integer number (1169936).

Almost surely, 26142143 is an apocalyptic number.

6142143 is a deficient number, since it is larger than the sum of its proper divisors (3217345).

6142143 is a wasteful number, since it uses less digits than its factorization.

6142143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292493.

The product of its digits is 576, while the sum is 21.

The square root of 6142143 is about 2478.3347231559. The cubic root of 6142143 is about 183.1358243940.

Adding to 6142143 its reverse (3412416), we get a palindrome (9554559).

The spelling of 6142143 in words is "six million, one hundred forty-two thousand, one hundred forty-three".

Divisors: 1 3 7 21 292483 877449 2047381 6142143