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555130420 = 225132135117
BaseRepresentation
bin100001000101101…
…001111000110100
31102200120112202221
4201011221320310
52114103133140
6131030212124
716520350015
oct4105517064
91380515687
10555130420
112653a1779
12135ab4044
138b018750
1453a2700c
1533b0814a
hex21169e34

555130420 has 24 divisors (see below), whose sum is σ = 1255449384. Its totient is φ = 204971136.

The previous prime is 555130409. The next prime is 555130463. The reversal of 555130420 is 24031555.

It can be written as a sum of positive squares in 4 ways, for example, as 8225424 + 546904996 = 2868^2 + 23386^2 .

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1067299 + ... + 1067818.

It is an arithmetic number, because the mean of its divisors is an integer number (52310391).

Almost surely, 2555130420 is an apocalyptic number.

It is an amenable number.

555130420 is an abundant number, since it is smaller than the sum of its proper divisors (700318964).

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

555130420 is a wasteful number, since it uses less digits than its factorization.

555130420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135139 (or 2135137 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 555130420 is about 23561.2058265276. The cubic root of 555130420 is about 821.8609430434.

Adding to 555130420 its reverse (24031555), we get a palindrome (579161975).

The spelling of 555130420 in words is "five hundred fifty-five million, one hundred thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 2135117 4270234 8540468 10675585 21351170 27756521 42702340 55513042 111026084 138782605 277565210 555130420