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408800055 = 35193141209
BaseRepresentation
bin11000010111011…
…100101100110111
31001111020012020210
4120113130230313
51314123100210
6104322000503
713062512616
oct3027345467
91044205223
10408800055
1119a836594
12b4aa6133
1366902c31
143c41587d
1525d50e20
hex185dcb37

408800055 has 16 divisors (see below), whose sum is σ = 657473760. Its totient is φ = 216895488.

The previous prime is 408800039. The next prime is 408800057. The reversal of 408800055 is 550008804.

It is not a de Polignac number, because 408800055 - 24 = 408800039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 408799995 and 408800031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (408800057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67710 + ... + 73499.

It is an arithmetic number, because the mean of its divisors is an integer number (41092110).

Almost surely, 2408800055 is an apocalyptic number.

408800055 is a deficient number, since it is larger than the sum of its proper divisors (248673705).

408800055 is a wasteful number, since it uses less digits than its factorization.

408800055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141410.

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 408800055 is about 20218.8044898802. The cubic root of 408800055 is about 742.1704327052.

Adding to 408800055 its reverse (550008804), we get a palindrome (958808859).

The spelling of 408800055 in words is "four hundred eight million, eight hundred thousand, fifty-five".

Divisors: 1 3 5 15 193 579 965 2895 141209 423627 706045 2118135 27253337 81760011 136266685 408800055