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131031303002 = 21723493333967
BaseRepresentation
bin111101000001000010…
…0110000001101011010
3110112012210111212101022
41322002010300031122
54121323003144002
6140110035322442
712316035461435
oct1720204601532
9415183455338
10131031303002
115062a833366
122148a150422
13c482751ab2
1464b044481c
15361d679ba2
hex1e8213035a

131031303002 has 32 divisors (see below), whose sum is σ = 217207153152. Its totient is φ = 58967149824.

The previous prime is 131031303001. The next prime is 131031303017. The reversal of 131031303002 is 200303130131.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (131031303001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3840623 + ... + 3874589.

It is an arithmetic number, because the mean of its divisors is an integer number (6787723536).

Almost surely, 2131031303002 is an apocalyptic number.

131031303002 is a deficient number, since it is larger than the sum of its proper divisors (86175850150).

131031303002 is a wasteful number, since it uses less digits than its factorization.

131031303002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38942.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 131031303002 its reverse (200303130131), we get a palindrome (331334433133).

The spelling of 131031303002 in words is "one hundred thirty-one billion, thirty-one million, three hundred three thousand, two".

Divisors: 1 2 17 23 34 46 391 782 4933 9866 33967 67934 83861 113459 167722 226918 577439 781241 1154878 1562482 1928803 3857606 13281097 26562194 167559211 335118422 2848506587 3853861853 5697013174 7707723706 65515651501 131031303002