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557230093 = 779604299
BaseRepresentation
bin100001001101101…
…010100000001101
31102211112012222121
4201031222200031
52120122330333
6131143212541
716544243350
oct4115524015
91384465877
10557230093
112665a6242
12136747151
138b5a2364
1454012297
1533dc032d
hex2136a80d

557230093 has 4 divisors (see below), whose sum is σ = 636834400. Its totient is φ = 477625788.

The previous prime is 557230021. The next prime is 557230117. The reversal of 557230093 is 390032755.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-557230093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557230013) 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, 39802143 + ... + 39802156.

It is an arithmetic number, because the mean of its divisors is an integer number (159208600).

Almost surely, 2557230093 is an apocalyptic number.

It is an amenable number.

557230093 is a deficient number, since it is larger than the sum of its proper divisors (79604307).

557230093 is an equidigital number, since it uses as much as digits as its factorization.

557230093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79604306.

The product of its (nonzero) digits is 28350, while the sum is 34.

The square root of 557230093 is about 23605.7216157439. The cubic root of 557230093 is about 822.8958158698.

The spelling of 557230093 in words is "five hundred fifty-seven million, two hundred thirty thousand, ninety-three".

Divisors: 1 7 79604299 557230093