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1420244 = 22750723
BaseRepresentation
bin101011010101111010100
32200011012122
411122233110
5330421434
650235112
715033440
oct5325724
92604178
101420244
11890061
12585a98
133a95a7
1428d820
151d0c2e
hex15abd4

1420244 has 12 divisors (see below), whose sum is σ = 2840544. Its totient is φ = 608664.

The previous prime is 1420207. The next prime is 1420253. The reversal of 1420244 is 4420241.

1420244 is an admirable number.

It is a congruent number.

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, 25334 + ... + 25389.

It is an arithmetic number, because the mean of its divisors is an integer number (236712).

21420244 is an apocalyptic number.

1420244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1420244 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1420244 is a wasteful number, since it uses less digits than its factorization.

1420244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50734 (or 50732 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1420244 is about 1191.7399045094. The cubic root of 1420244 is about 112.4055239747.

Adding to 1420244 its reverse (4420241), we get a palindrome (5840485).

The spelling of 1420244 in words is "one million, four hundred twenty thousand, two hundred forty-four".

Divisors: 1 2 4 7 14 28 50723 101446 202892 355061 710122 1420244