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530228812 = 22132557203
BaseRepresentation
bin11111100110101…
…010011001001100
31100221201102012011
4133212222121030
52041214310222
6124340351004
716065604411
oct3746523114
91327642164
10530228812
11252333833
121296a5464
1385b0a279
14505c4108
1531839c77
hex1f9aa64c

530228812 has 6 divisors (see below), whose sum is σ = 927900428. Its totient is φ = 265114404.

The previous prime is 530228807. The next prime is 530228813. The reversal of 530228812 is 218822035.

It is a super-2 number, since 2×5302288122 = 562285186149862688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (530228813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66278598 + ... + 66278605.

Almost surely, 2530228812 is an apocalyptic number.

It is an amenable number.

530228812 is a deficient number, since it is larger than the sum of its proper divisors (397671616).

530228812 is a wasteful number, since it uses less digits than its factorization.

530228812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132557207 (or 132557205 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 530228812 is about 23026.6978092822. The cubic root of 530228812 is about 809.3836758550.

The spelling of 530228812 in words is "five hundred thirty million, two hundred twenty-eight thousand, eight hundred twelve".

Divisors: 1 2 4 132557203 265114406 530228812