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557438500 = 22531765581
BaseRepresentation
bin100001001110011…
…101011000100100
31102211220210212101
4201032131120210
52120201013000
6131151501444
716546102063
oct4116353044
91384823771
10557438500
11266728883
12136827884
138b646188
14540681da
1533e11e6a
hex2139d624

557438500 has 48 divisors (see below), whose sum is σ = 1289079792. Its totient is φ = 209856000.

The previous prime is 557438467. The next prime is 557438561. The reversal of 557438500 is 5834755.

It can be written as a sum of positive squares in 8 ways, for example, as 270339364 + 287099136 = 16442^2 + 16944^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 557438500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24291 + ... + 41290.

It is an arithmetic number, because the mean of its divisors is an integer number (26855829).

Almost surely, 2557438500 is an apocalyptic number.

557438500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

557438500 is an abundant number, since it is smaller than the sum of its proper divisors (731641292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

557438500 is a wasteful number, since it uses less digits than its factorization.

557438500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65617 (or 65605 counting only the distinct ones).

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 557438500 is about 23610.1355354009. The cubic root of 557438500 is about 822.9983922110.

The spelling of 557438500 in words is "five hundred fifty-seven million, four hundred thirty-eight thousand, five hundred".

Divisors: 1 2 4 5 10 17 20 25 34 50 68 85 100 125 170 250 340 425 500 850 1700 2125 4250 8500 65581 131162 262324 327905 655810 1114877 1311620 1639525 2229754 3279050 4459508 5574385 6558100 8197625 11148770 16395250 22297540 27871925 32790500 55743850 111487700 139359625 278719250 557438500