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4142879 = 13318683
BaseRepresentation
bin1111110011011100011111
321210110221222
433303130133
52030033004
6224443555
750133236
oct17633437
97713858
104142879
11237a674
1214795bb
13b20910
1479bb1d
1556c7be
hex3f371f

4142879 has 4 divisors (see below), whose sum is σ = 4461576. Its totient is φ = 3824184.

The previous prime is 4142863. The next prime is 4142891. The reversal of 4142879 is 9782414.

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

It is not a de Polignac number, because 4142879 - 24 = 4142863 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 (4142899) 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, 159329 + ... + 159354.

It is an arithmetic number, because the mean of its divisors is an integer number (1115394).

Almost surely, 24142879 is an apocalyptic number.

4142879 is a deficient number, since it is larger than the sum of its proper divisors (318697).

4142879 is a wasteful number, since it uses less digits than its factorization.

4142879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318696.

The product of its digits is 16128, while the sum is 35.

The square root of 4142879 is about 2035.4063476368. The cubic root of 4142879 is about 160.6080896367.

The spelling of 4142879 in words is "four million, one hundred forty-two thousand, eight hundred seventy-nine".

Divisors: 1 13 318683 4142879