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557427580 = 22527871379
BaseRepresentation
bin100001001110011…
…010101101111100
31102211220020212221
4201032122231330
52120200140310
6131151335124
716546025203
oct4116325574
91384806787
10557427580
11266720656
121368214a4
138b641208
145406423a
1533e0dada
hex2139ab7c

557427580 has 12 divisors (see below), whose sum is σ = 1170597960. Its totient is φ = 222971024.

The previous prime is 557427571. The next prime is 557427581. The reversal of 557427580 is 85724755.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557427581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13935670 + ... + 13935709.

It is an arithmetic number, because the mean of its divisors is an integer number (97549830).

Almost surely, 2557427580 is an apocalyptic number.

It is an amenable number.

557427580 is an abundant number, since it is smaller than the sum of its proper divisors (613170380).

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

557427580 is a wasteful number, since it uses less digits than its factorization.

557427580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27871388 (or 27871386 counting only the distinct ones).

The product of its (nonzero) digits is 392000, while the sum is 43.

The square root of 557427580 is about 23609.9042776543. The cubic root of 557427580 is about 822.9930181048.

The spelling of 557427580 in words is "five hundred fifty-seven million, four hundred twenty-seven thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 27871379 55742758 111485516 139356895 278713790 557427580