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130213203031 = 719318102767
BaseRepresentation
bin111100101000101001…
…1111100110001010111
3110110002210010002012101
41321101103330301113
54113134034444111
6135452532502531
712256542651352
oct1712123746127
9413083102171
10130213203031
115024aa5a78a
12212a017aa47
13c382102582
146433927299
1535c1929bc1
hex1e514fcc57

130213203031 has 4 divisors (see below), whose sum is σ = 130231312992. Its totient is φ = 130195093072.

The previous prime is 130213203017. The next prime is 130213203049. The reversal of 130213203031 is 130302312031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130213203031 is a prime.

It is a super-2 number, since 2×1302132030312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130213203091) 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, 9044191 + ... + 9058576.

It is an arithmetic number, because the mean of its divisors is an integer number (32557828248).

Almost surely, 2130213203031 is an apocalyptic number.

130213203031 is a deficient number, since it is larger than the sum of its proper divisors (18109961).

130213203031 is an equidigital number, since it uses as much as digits as its factorization.

130213203031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18109960.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 130213203031 its reverse (130302312031), we get a palindrome (260515515062).

The spelling of 130213203031 in words is "one hundred thirty billion, two hundred thirteen million, two hundred three thousand, thirty-one".

Divisors: 1 7193 18102767 130213203031