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408029 = 616689
BaseRepresentation
bin1100011100111011101
3202201201012
41203213131
5101024104
612425005
73316406
oct1434735
9681635
10408029
11259616
12178165
1311394b
14a89ad
1580d6e
hex639dd

408029 has 4 divisors (see below), whose sum is σ = 414780. Its totient is φ = 401280.

The previous prime is 408019. The next prime is 408041. The reversal of 408029 is 920804.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 156025 + 252004 = 395^2 + 502^2 .

It is a cyclic number.

It is not a de Polignac number, because 408029 - 212 = 403933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 407995 and 408013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3284 + ... + 3405.

It is an arithmetic number, because the mean of its divisors is an integer number (103695).

2408029 is an apocalyptic number.

It is an amenable number.

408029 is a deficient number, since it is larger than the sum of its proper divisors (6751).

408029 is an equidigital number, since it uses as much as digits as its factorization.

408029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6750.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 408029 is about 638.7714771340. The cubic root of 408029 is about 74.1703526062.

The spelling of 408029 in words is "four hundred eight thousand, twenty-nine".

Divisors: 1 61 6689 408029