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31053630017 = 50361736839
BaseRepresentation
bin11100111010111100…
…001100101001000001
32222011011212212001002
4130322330030221001
51002044212130032
622133231021345
72146352333324
oct347274145101
988134785032
1031053630017
1112195a67943
12602796a855
132c0b75ba07
1417083567bb
15c1b3a0862
hex73af0ca41

31053630017 has 4 divisors (see below), whose sum is σ = 31115367360. Its totient is φ = 30991892676.

The previous prime is 31053629977. The next prime is 31053630019. The reversal of 31053630017 is 71003635013.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31053630017 - 230 = 29979888193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31053630019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30867917 + ... + 30868922.

It is an arithmetic number, because the mean of its divisors is an integer number (7778841840).

Almost surely, 231053630017 is an apocalyptic number.

It is an amenable number.

31053630017 is a deficient number, since it is larger than the sum of its proper divisors (61737343).

31053630017 is an equidigital number, since it uses as much as digits as its factorization.

31053630017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61737342.

The product of its (nonzero) digits is 5670, while the sum is 29.

The spelling of 31053630017 in words is "thirty-one billion, fifty-three million, six hundred thirty thousand, seventeen".

Divisors: 1 503 61736839 31053630017