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384142 = 21119919
BaseRepresentation
bin1011101110010001110
3201111221111
41131302032
544243032
612122234
73156643
oct1356216
9644844
10384142
11242680
1216637a
13105b05
149ddca
1578c47
hex5dc8e

384142 has 16 divisors (see below), whose sum is σ = 662400. Its totient is φ = 165240.

The previous prime is 384133. The next prime is 384143. The reversal of 384142 is 241483.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42 + ... + 877.

It is an arithmetic number, because the mean of its divisors is an integer number (41400).

2384142 is an apocalyptic number.

384142 is a deficient number, since it is larger than the sum of its proper divisors (278258).

384142 is a wasteful number, since it uses less digits than its factorization.

384142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951.

The product of its digits is 768, while the sum is 22.

The square root of 384142 is about 619.7919005602. The cubic root of 384142 is about 72.6937820232.

It can be divided in two parts, 38414 and 2, that added together give a 4-th power (38416 = 144).

The spelling of 384142 in words is "three hundred eighty-four thousand, one hundred forty-two".

Divisors: 1 2 11 19 22 38 209 418 919 1838 10109 17461 20218 34922 192071 384142