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554404540 = 22543364019
BaseRepresentation
bin100001000010111…
…000101010111100
31102122012200001111
4201002320222330
52113411421130
6131002451404
716511234524
oct4102705274
91378180044
10554404540
11264a46378
12135803b64
138ab23231
14538b8684
1533a1302a
hex210b8abc

554404540 has 24 divisors (see below), whose sum is σ = 1166956560. Its totient is φ = 221246208.

The previous prime is 554404519. The next prime is 554404549. The reversal of 554404540 is 45404455.

It is a happy number.

It is a super-2 number, since 2×5544045402 = 614728787945223200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (554404549) by changing a digit.

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, 23350 + ... + 40669.

It is an arithmetic number, because the mean of its divisors is an integer number (48623190).

Almost surely, 2554404540 is an apocalyptic number.

It is an amenable number.

554404540 is an abundant number, since it is smaller than the sum of its proper divisors (612552020).

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

554404540 is a wasteful number, since it uses less digits than its factorization.

554404540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64461 (or 64459 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 554404540 is about 23545.7966524813. The cubic root of 554404540 is about 821.5025692200.

Adding to 554404540 its reverse (45404455), we get a palindrome (599808995).

The spelling of 554404540 in words is "five hundred fifty-four million, four hundred four thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 433 866 1732 2165 4330 8660 64019 128038 256076 320095 640190 1280380 27720227 55440454 110880908 138601135 277202270 554404540