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1409025 = 35218787
BaseRepresentation
bin101011000000000000001
32122120211010
411120000001
5330042100
650111133
714655642
oct5300001
92576733
101409025
11882692
1257b4a9
133a4457
142896c9
151cc750
hex158001

1409025 has 12 divisors (see below), whose sum is σ = 2329712. Its totient is φ = 751440.

The previous prime is 1409017. The next prime is 1409027. The reversal of 1409025 is 5209041.

It is not a de Polignac number, because 1409025 - 23 = 1409017 is a prime.

It is a Duffinian number.

1409025 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1408992 and 1409010.

It is not an unprimeable number, because it can be changed into a prime (1409027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9319 + ... + 9468.

It is a Proth number, since it is equal to 43 ⋅ 215 + 1 and 43 < 215.

21409025 is an apocalyptic number.

1409025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1409025 is a deficient number, since it is larger than the sum of its proper divisors (920687).

1409025 is a wasteful number, since it uses less digits than its factorization.

1409025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18800 (or 18795 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1409025 is about 1187.0235886451. The cubic root of 1409025 is about 112.1087644540.

The spelling of 1409025 in words is "one million, four hundred nine thousand, twenty-five".

Divisors: 1 3 5 15 25 75 18787 56361 93935 281805 469675 1409025