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404125 = 535361
BaseRepresentation
bin1100010101010011101
3202112100121
41202222131
5100413000
612354541
73302131
oct1425235
9675317
10404125
11256697
12175a51
13111c37
14a73c1
157eb1a
hex62a9d

404125 has 16 divisors (see below), whose sum is σ = 522288. Its totient is φ = 312000.

The previous prime is 404123. The next prime is 404161. The reversal of 404125 is 521404.

It can be written as a sum of positive squares in 8 ways, for example, as 205209 + 198916 = 453^2 + 446^2 .

It is not a de Polignac number, because 404125 - 21 = 404123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404099 and 404108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6595 + ... + 6655.

It is an arithmetic number, because the mean of its divisors is an integer number (32643).

2404125 is an apocalyptic number.

It is an amenable number.

404125 is a deficient number, since it is larger than the sum of its proper divisors (118163).

404125 is an equidigital number, since it uses as much as digits as its factorization.

404125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 404125 is about 635.7082664242. The cubic root of 404125 is about 73.9330414521.

Adding to 404125 its reverse (521404), we get a palindrome (925529).

It can be divided in two parts, 4041 and 25, that multiplied together give a triangular number (101025 = T449).

The spelling of 404125 in words is "four hundred four thousand, one hundred twenty-five".

Divisors: 1 5 25 53 61 125 265 305 1325 1525 3233 6625 7625 16165 80825 404125