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1442285 = 51322189
BaseRepresentation
bin101100000000111101101
32201021102222
411200013231
5332123120
650525125
715154625
oct5400755
92637388
101442285
118a5679
125967a5
133b6630
14297885
151d7525
hex1601ed

1442285 has 8 divisors (see below), whose sum is σ = 1863960. Its totient is φ = 1065024.

The previous prime is 1442279. The next prime is 1442299. The reversal of 1442285 is 5822441.

1442285 = T320 + T321 + ... + T345.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 64009 + 1378276 = 253^2 + 1174^2 .

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 1442285 - 218 = 1180141 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11030 + ... + 11159.

It is an arithmetic number, because the mean of its divisors is an integer number (232995).

21442285 is an apocalyptic number.

It is an amenable number.

1442285 is a deficient number, since it is larger than the sum of its proper divisors (421675).

1442285 is a wasteful number, since it uses less digits than its factorization.

1442285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22207.

The product of its digits is 2560, while the sum is 26.

The square root of 1442285 is about 1200.9517059399. The cubic root of 1442285 is about 112.9840215484.

The spelling of 1442285 in words is "one million, four hundred forty-two thousand, two hundred eighty-five".

Divisors: 1 5 13 65 22189 110945 288457 1442285