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3842031 = 31280677
BaseRepresentation
bin1110101001111111101111
321020012021110
432221333233
51440421111
6214203103
744441154
oct16517757
97205243
103842031
112194636
121353493
13a469bb
1472022b
1550d5a6
hex3a9fef

3842031 has 4 divisors (see below), whose sum is σ = 5122712. Its totient is φ = 2561352.

The previous prime is 3842029. The next prime is 3842077. The reversal of 3842031 is 1302483.

It is a happy number.

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

It is not a de Polignac number, because 3842031 - 21 = 3842029 is a prime.

It is a super-2 number, since 2×38420312 = 29522404409922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3841989 and 3842007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3842011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640336 + ... + 640341.

It is an arithmetic number, because the mean of its divisors is an integer number (1280678).

Almost surely, 23842031 is an apocalyptic number.

3842031 is a deficient number, since it is larger than the sum of its proper divisors (1280681).

3842031 is a wasteful number, since it uses less digits than its factorization.

3842031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280680.

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

The square root of 3842031 is about 1960.1099458959. The cubic root of 3842031 is about 156.6223087537.

It can be divided in two parts, 384 and 2031, that added together give a triangular number (2415 = T69).

The spelling of 3842031 in words is "three million, eight hundred forty-two thousand, thirty-one".

Divisors: 1 3 1280677 3842031