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1232523130 = 25123252313
BaseRepresentation
bin100100101110110…
…1100111101111010
310011220012122212211
41021131230331322
510011011220010
6322145125334
742354162616
oct11135547572
93156178784
101232523130
115827aa963
122a492984a
13168470a37
14b9998346
157331208a
hex4976cf7a

1232523130 has 8 divisors (see below), whose sum is σ = 2218541652. Its totient is φ = 493009248.

The previous prime is 1232523107. The next prime is 1232523139. The reversal of 1232523130 is 313252321.

It can be written as a sum of positive squares in 2 ways, for example, as 1160833041 + 71690089 = 34071^2 + 8467^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12325231302 = 3038226531969993800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1232523139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61626147 + ... + 61626166.

Almost surely, 21232523130 is an apocalyptic number.

1232523130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1232523130 is a deficient number, since it is larger than the sum of its proper divisors (986018522).

1232523130 is a wasteful number, since it uses less digits than its factorization.

1232523130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123252320.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1232523130 is about 35107.3087832149. The cubic root of 1232523130 is about 1072.1733941371.

Adding to 1232523130 its reverse (313252321), we get a palindrome (1545775451).

The spelling of 1232523130 in words is "one billion, two hundred thirty-two million, five hundred twenty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 123252313 246504626 616261565 1232523130