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7530133 = 132172621
BaseRepresentation
bin11100101110011010010101
3112011120101211
4130232122111
53411431013
6425221421
7121001512
oct34563225
915146354
107530133
114283556
122631871
131738600
141000309
159db23d
hex72e695

7530133 has 12 divisors (see below), whose sum is σ = 8636868. Its totient is φ = 6539520.

The previous prime is 7530121. The next prime is 7530139. The reversal of 7530133 is 3310357.

It can be written as a sum of positive squares in 6 ways, for example, as 33489 + 7496644 = 183^2 + 2738^2 .

It is not a de Polignac number, because 7530133 - 221 = 5432981 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 (7530139) 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 11 ways as a sum of consecutive naturals, for example, 1563 + ... + 4183.

It is an arithmetic number, because the mean of its divisors is an integer number (719739).

Almost surely, 27530133 is an apocalyptic number.

It is an amenable number.

7530133 is a deficient number, since it is larger than the sum of its proper divisors (1106735).

7530133 is a wasteful number, since it uses less digits than its factorization.

7530133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2664 (or 2651 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 22.

The square root of 7530133 is about 2744.1087806426. The cubic root of 7530133 is about 196.0051799964.

The spelling of 7530133 in words is "seven million, five hundred thirty thousand, one hundred thirty-three".

Divisors: 1 13 17 169 221 2621 2873 34073 44557 442949 579241 7530133