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4287142 = 22143571
BaseRepresentation
bin10000010110101010100110
322001210212001
4100112222212
52044142032
6231515514
751303646
oct20265246
98053761
104287142
112468aa2
121528b9a
13b71492
147d8526
1559a3e7
hex416aa6

4287142 has 4 divisors (see below), whose sum is σ = 6430716. Its totient is φ = 2143570.

The previous prime is 4287137. The next prime is 4287181. The reversal of 4287142 is 2417824.

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

It is a self number, because there is not a number n which added to its sum of digits gives 4287142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071784 + ... + 1071787.

It is an arithmetic number, because the mean of its divisors is an integer number (1607679).

Almost surely, 24287142 is an apocalyptic number.

4287142 is a deficient number, since it is larger than the sum of its proper divisors (2143574).

4287142 is a wasteful number, since it uses less digits than its factorization.

4287142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143573.

The product of its digits is 3584, while the sum is 28.

The square root of 4287142 is about 2070.5414750736. The cubic root of 4287142 is about 162.4510874484.

The spelling of 4287142 in words is "four million, two hundred eighty-seven thousand, one hundred forty-two".

Divisors: 1 2 2143571 4287142