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1442402519 = 17233689009
BaseRepresentation
bin101010111111001…
…0101000011010111
310201112010122021112
41111332111003113
510423223340034
6355043405235
750513135105
oct12576250327
93645118245
101442402519
116802203a8
1234308381b
1319caa6a1c
14d97ccc75
158696d7ce
hex55f950d7

1442402519 has 8 divisors (see below), whose sum is σ = 1593652320. Its totient is φ = 1298530816.

The previous prime is 1442402501. The next prime is 1442402527. The reversal of 1442402519 is 9152042441.

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

It is a cyclic number.

It is not a de Polignac number, because 1442402519 - 216 = 1442336983 is a prime.

It is a super-2 number, since 2×14424025192 = 4161050053635090722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442402569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1844114 + ... + 1844895.

It is an arithmetic number, because the mean of its divisors is an integer number (199206540).

Almost surely, 21442402519 is an apocalyptic number.

1442402519 is a deficient number, since it is larger than the sum of its proper divisors (151249801).

1442402519 is a wasteful number, since it uses less digits than its factorization.

1442402519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3689049.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1442402519 is about 37978.9746965344. The cubic root of 1442402519 is about 1129.8709015331.

The spelling of 1442402519 in words is "one billion, four hundred forty-two million, four hundred two thousand, five hundred nineteen".

Divisors: 1 17 23 391 3689009 62713153 84847207 1442402519