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2631130553 = 11149235997
BaseRepresentation
bin1001110011010011…
…1101110110111001
320210100221021120202
42130310331312321
520342032134203
61113030131545
7122126145362
oct23464756671
96710837522
102631130553
111130228367
126151b0bb5
1332c1526ac
141ad626b69
15105ece388
hex9cd3ddb9

2631130553 has 4 divisors (see below), whose sum is σ = 2631377700. Its totient is φ = 2630883408.

The previous prime is 2631130499. The next prime is 2631130559. The reversal of 2631130553 is 3550311362.

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

It can be written as a sum of positive squares in 2 ways, for example, as 228856384 + 2402274169 = 15128^2 + 49013^2 .

It is a cyclic number.

It is not a de Polignac number, because 2631130553 - 28 = 2631130297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2631130559) 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, 106850 + ... + 129147.

It is an arithmetic number, because the mean of its divisors is an integer number (657844425).

Almost surely, 22631130553 is an apocalyptic number.

It is an amenable number.

2631130553 is a deficient number, since it is larger than the sum of its proper divisors (247147).

2631130553 is a wasteful number, since it uses less digits than its factorization.

2631130553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247146.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 2631130553 is about 51294.5470103792. The cubic root of 2631130553 is about 1380.5351409457.

The spelling of 2631130553 in words is "two billion, six hundred thirty-one million, one hundred thirty thousand, five hundred fifty-three".

Divisors: 1 11149 235997 2631130553