Search a number
1042425 = 325241113
BaseRepresentation
bin11111110011111111001
31221221221100
43332133321
5231324200
634202013
711601066
oct3763771
91857840
101042425
1165220a
12423309
132a6627
141d1c6d
15158d00
hexfe7f9

1042425 has 36 divisors (see below), whose sum is σ = 1929564. Its totient is φ = 537600.

The previous prime is 1042399. The next prime is 1042427. The reversal of 1042425 is 5242401.

It can be written as a sum of positive squares in 6 ways, for example, as 484416 + 558009 = 696^2 + 747^2 .

It is not a de Polignac number, because 1042425 - 212 = 1038329 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1042398 and 1042407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042427) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9169 + ... + 9281.

It is an arithmetic number, because the mean of its divisors is an integer number (53599).

21042425 is an apocalyptic number.

1042425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1042425 is a deficient number, since it is larger than the sum of its proper divisors (887139).

1042425 is a wasteful number, since it uses less digits than its factorization.

1042425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1042425 is about 1020.9921645145. The cubic root of 1042425 is about 101.3946264207.

Adding to 1042425 its reverse (5242401), we get a palindrome (6284826).

The spelling of 1042425 in words is "one million, forty-two thousand, four hundred twenty-five".