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1431025 = 5257241
BaseRepresentation
bin101011101010111110001
32200200222221
411131113301
5331243100
650401041
715110041
oct5352761
92620887
101431025
11898172
12590181
133b147b
14293721
151d401a
hex15d5f1

1431025 has 6 divisors (see below), whose sum is σ = 1774502. Its totient is φ = 1144800.

The previous prime is 1431013. The next prime is 1431029. The reversal of 1431025 is 5201341.

It can be written as a sum of positive squares in 3 ways, for example, as 12544 + 1418481 = 112^2 + 1191^2 .

It is not a de Polignac number, because 1431025 - 25 = 1430993 is a prime.

It is a Duffinian number.

1431025 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1431029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28596 + ... + 28645.

21431025 is an apocalyptic number.

It is an amenable number.

1431025 is a deficient number, since it is larger than the sum of its proper divisors (343477).

1431025 is an equidigital number, since it uses as much as digits as its factorization.

1431025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57251 (or 57246 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1431025 is about 1196.2545715691. The cubic root of 1431025 is about 112.6892288572.

Adding to 1431025 its reverse (5201341), we get a palindrome (6632366).

The spelling of 1431025 in words is "one million, four hundred thirty-one thousand, twenty-five".

Divisors: 1 5 25 57241 286205 1431025