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1442402042 = 21187607583
BaseRepresentation
bin101010111111001…
…0100111011111010
310201112010121121212
41111332110323322
510423223331132
6355043403122
750513133524
oct12576247372
93645117555
101442402042
11680220004
123430834a2
1319caa6743
14d97cca14
158696d5b2
hex55f94efa

1442402042 has 8 divisors (see below), whose sum is σ = 2165429376. Its totient is φ = 720592252.

The previous prime is 1442402033. The next prime is 1442402057. The reversal of 1442402042 is 2402042441.

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

It is a junction number, because it is equal to n+sod(n) for n = 1442401999 and 1442402017.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301418 + ... + 306165.

It is an arithmetic number, because the mean of its divisors is an integer number (270678672).

Almost surely, 21442402042 is an apocalyptic number.

1442402042 is a deficient number, since it is larger than the sum of its proper divisors (723027334).

1442402042 is a wasteful number, since it uses less digits than its factorization.

1442402042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 608772.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 1442402042 is about 37978.9684167435. The cubic root of 1442402042 is about 1129.8707769843.

Adding to 1442402042 its reverse (2402042441), we get a palindrome (3844444483).

The spelling of 1442402042 in words is "one billion, four hundred forty-two million, four hundred two thousand, forty-two".

Divisors: 1 2 1187 2374 607583 1215166 721201021 1442402042