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13003031003 = 31487861299
BaseRepresentation
bin11000001110000101…
…01000000111011011
31020120012111102012212
430013002220013123
5203112233443003
65550140025335
7640140640244
oct140702500733
936505442185
1013003031003
115572965716
12262a83224b
1312c2bc34b1
148b4d17ccb
1551184edd8
hex3070a81db

13003031003 has 8 divisors (see below), whose sum is σ = 13450060800. Its totient is φ = 12557724840.

The previous prime is 13003030973. The next prime is 13003031011. The reversal of 13003031003 is 30013030031.

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 13003031003 - 26 = 13003030939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13003031033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415553 + ... + 445746.

It is an arithmetic number, because the mean of its divisors is an integer number (1681257600).

Almost surely, 213003031003 is an apocalyptic number.

13003031003 is a deficient number, since it is larger than the sum of its proper divisors (447029797).

13003031003 is an equidigital number, since it uses as much as digits as its factorization.

13003031003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861817.

The product of its (nonzero) digits is 81, while the sum is 14.

Adding to 13003031003 its reverse (30013030031), we get a palindrome (43016061034).

It can be divided in two parts, 1300 and 3031003, that added together give a palindrome (3032303).

The spelling of 13003031003 in words is "thirteen billion, three million, thirty-one thousand, three".

Divisors: 1 31 487 15097 861299 26700269 419452613 13003031003