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1442542 = 21395189
BaseRepresentation
bin101100000001011101110
32201021210111
411200023232
5332130132
650530234
715155443
oct5401356
92637714
101442542
118a5892
1259697a
133b679a
142979ca
151d7647
hex1602ee

1442542 has 8 divisors (see below), whose sum is σ = 2179800. Its totient is φ = 715944.

The previous prime is 1442531. The next prime is 1442549. The reversal of 1442542 is 2452441.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442549) 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, 2317 + ... + 2872.

It is an arithmetic number, because the mean of its divisors is an integer number (272475).

21442542 is an apocalyptic number.

1442542 is a deficient number, since it is larger than the sum of its proper divisors (737258).

1442542 is a wasteful number, since it uses less digits than its factorization.

1442542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330.

The product of its digits is 1280, while the sum is 22.

The square root of 1442542 is about 1201.0586996479. The cubic root of 1442542 is about 112.9907320041.

Adding to 1442542 its reverse (2452441), we get a palindrome (3894983).

The spelling of 1442542 in words is "one million, four hundred forty-two thousand, five hundred forty-two".

Divisors: 1 2 139 278 5189 10378 721271 1442542