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557240853 = 313139102793
BaseRepresentation
bin100001001101101…
…101001000010101
31102211112202202010
4201031231020111
52120123201403
6131143334433
716544316621
oct4115551025
91384482663
10557240853
11266603334
12136751419
138b5a7220
1454016181
1533dc3603
hex2136d215

557240853 has 16 divisors (see below), whose sum is σ = 805904960. Its totient is φ = 340447104.

The previous prime is 557240851. The next prime is 557240863. The reversal of 557240853 is 358042755.

It is not a de Polignac number, because 557240853 - 21 = 557240851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557240851) 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 15 ways as a sum of consecutive naturals, for example, 45976 + ... + 56817.

It is an arithmetic number, because the mean of its divisors is an integer number (50369060).

Almost surely, 2557240853 is an apocalyptic number.

It is an amenable number.

557240853 is a deficient number, since it is larger than the sum of its proper divisors (248664107).

557240853 is a wasteful number, since it uses less digits than its factorization.

557240853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102948.

The product of its (nonzero) digits is 168000, while the sum is 39.

The square root of 557240853 is about 23605.9495254904. The cubic root of 557240853 is about 822.9011124861.

The spelling of 557240853 in words is "five hundred fifty-seven million, two hundred forty thousand, eight hundred fifty-three".

Divisors: 1 3 13 39 139 417 1807 5421 102793 308379 1336309 4008927 14288227 42864681 185746951 557240853