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1152311331 = 31850320759
BaseRepresentation
bin100010010101110…
…1110000000100011
32222022021110222110
41010223232000203
54324442430311
6310202010403
740361325153
oct10453560043
92868243873
101152311331
115414a4616
12281aa6a03
13154968132
14ad078763
156b26a8a6
hex44aee023

1152311331 has 8 divisors (see below), whose sum is σ = 1536572160. Its totient is φ = 768129032.

The previous prime is 1152311311. The next prime is 1152311353. The reversal of 1152311331 is 1331132511.

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

It is a cyclic number.

It is not a de Polignac number, because 1152311331 - 210 = 1152310307 is a prime.

It is a super-2 number, since 2×11523113312 = 2655642807101983122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1152311298 and 1152311307.

It is not an unprimeable number, because it can be changed into a prime (1152311311) 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 7 ways as a sum of consecutive naturals, for example, 45130 + ... + 65888.

It is an arithmetic number, because the mean of its divisors is an integer number (192071520).

Almost surely, 21152311331 is an apocalyptic number.

1152311331 is a deficient number, since it is larger than the sum of its proper divisors (384260829).

1152311331 is a wasteful number, since it uses less digits than its factorization.

1152311331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39265.

The product of its digits is 270, while the sum is 21.

The square root of 1152311331 is about 33945.7115259056. The cubic root of 1152311331 is about 1048.3909841360.

Adding to 1152311331 its reverse (1331132511), we get a palindrome (2483443842).

The spelling of 1152311331 in words is "one billion, one hundred fifty-two million, three hundred eleven thousand, three hundred thirty-one".

Divisors: 1 3 18503 20759 55509 62277 384103777 1152311331