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453120631 = 2319700897
BaseRepresentation
bin11011000000100…
…001001001110111
31011120121220122121
4123000201021313
51411444330011
6112543540411
714141314255
oct3300411167
91146556577
10453120631
11212858267
121078ba707
1372b50222
14442715d5
1529ba7e71
hex1b021277

453120631 has 4 divisors (see below), whose sum is σ = 472821552. Its totient is φ = 433419712.

The previous prime is 453120559. The next prime is 453120637. The reversal of 453120631 is 136021354.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 453120631 - 211 = 453118583 is a prime.

It is a super-2 number, since 2×4531206312 = 410636612475676322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 453120596 and 453120605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453120637) 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 3 ways as a sum of consecutive naturals, for example, 9850426 + ... + 9850471.

It is an arithmetic number, because the mean of its divisors is an integer number (118205388).

Almost surely, 2453120631 is an apocalyptic number.

453120631 is a deficient number, since it is larger than the sum of its proper divisors (19700921).

453120631 is a wasteful number, since it uses less digits than its factorization.

453120631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19700920.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 453120631 is about 21286.6303345551. The cubic root of 453120631 is about 768.0767378246.

Adding to 453120631 its reverse (136021354), we get a palindrome (589141985).

The spelling of 453120631 in words is "four hundred fifty-three million, one hundred twenty thousand, six hundred thirty-one".

Divisors: 1 23 19700897 453120631