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1442146001 = 2503576167
BaseRepresentation
bin101010111110101…
…0110011011010001
310201111122121101212
41111331112123101
510423142133001
6355034105505
750511016202
oct12575263321
93644577355
101442146001
116800656aa
12342b7b295
1319ca1703a
14d97635a9
158691c7bb
hex55f566d1

1442146001 has 4 divisors (see below), whose sum is σ = 1442724672. Its totient is φ = 1441567332.

The previous prime is 1442145941. The next prime is 1442146021. The reversal of 1442146001 is 1006412441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1006412441 = 4192401939.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1442146001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442146021) 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, 285581 + ... + 290586.

It is an arithmetic number, because the mean of its divisors is an integer number (360681168).

Almost surely, 21442146001 is an apocalyptic number.

It is an amenable number.

1442146001 is a deficient number, since it is larger than the sum of its proper divisors (578671).

1442146001 is an equidigital number, since it uses as much as digits as its factorization.

1442146001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578670.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1442146001 is about 37975.5974409883. The cubic root of 1442146001 is about 1129.8039185185.

Adding to 1442146001 its reverse (1006412441), we get a palindrome (2448558442).

The spelling of 1442146001 in words is "one billion, four hundred forty-two million, one hundred forty-six thousand, one".

Divisors: 1 2503 576167 1442146001