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1284042 = 23214007
BaseRepresentation
bin100111001011111001010
32102020101010
410321133022
5312042132
643304350
713625364
oct4713712
92366333
101284042
117a77a1
1251b0b6
1335c5b6
14255d34
151a56cc
hex1397ca

1284042 has 8 divisors (see below), whose sum is σ = 2568096. Its totient is φ = 428012.

The previous prime is 1284037. The next prime is 1284043. The reversal of 1284042 is 2404821.

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

1284042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1284043) 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, 106998 + ... + 107009.

It is an arithmetic number, because the mean of its divisors is an integer number (321012).

21284042 is an apocalyptic number.

1284042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1284042 is a wasteful number, since it uses less digits than its factorization.

1284042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214012.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 1284042 is about 1133.1557704041. The cubic root of 1284042 is about 108.6908728658.

Adding to 1284042 its reverse (2404821), we get a palindrome (3688863).

The spelling of 1284042 in words is "one million, two hundred eighty-four thousand, forty-two".

Divisors: 1 2 3 6 214007 428014 642021 1284042