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408080481 = 3136026827
BaseRepresentation
bin11000010100101…
…101000001100001
31001102212122011220
4120110231001201
51313432033411
6104254325253
713053425004
oct3024550141
91042778156
10408080481
1119a3949a6
12b47b9829
1366710553
143c2a953b
1525c5cb06
hex1852d061

408080481 has 4 divisors (see below), whose sum is σ = 544107312. Its totient is φ = 272053652.

The previous prime is 408080479. The next prime is 408080507. The reversal of 408080481 is 184080804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 408080481 - 21 = 408080479 is a prime.

It is a super-2 number, since 2×4080804812 = 333059357946382722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (408080581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68013411 + ... + 68013416.

It is an arithmetic number, because the mean of its divisors is an integer number (136026828).

Almost surely, 2408080481 is an apocalyptic number.

It is an amenable number.

408080481 is a deficient number, since it is larger than the sum of its proper divisors (136026831).

408080481 is a wasteful number, since it uses less digits than its factorization.

408080481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136026830.

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 408080481 is about 20201.0019800999. The cubic root of 408080481 is about 741.7347183163.

The spelling of 408080481 in words is "four hundred eight million, eighty thousand, four hundred eighty-one".

Divisors: 1 3 136026827 408080481