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130221304031 = 71310713373863
BaseRepresentation
bin111100101000111001…
…0110110100011011111
3110110010100100122200102
41321101302312203133
54113143123212111
6135453422251315
712260001551420
oct1712162664337
9413110318612
10130221304031
1150254593125
12212a2a26b3b
13c3839aa970
146434a35647
1535c24ca13b
hex1e51cb68df

130221304031 has 16 divisors (see below), whose sum is σ = 161770258944. Its totient is φ = 102069314784.

The previous prime is 130221304013. The next prime is 130221304039. The reversal of 130221304031 is 130403122031.

It is a cyclic number.

It is not a de Polignac number, because 130221304031 - 218 = 130221041887 is a prime.

It is a super-2 number, since 2×1302213040312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 130221303994 and 130221304012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130221304039) 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, 6677195 + ... + 6696668.

It is an arithmetic number, because the mean of its divisors is an integer number (10110641184).

Almost surely, 2130221304031 is an apocalyptic number.

130221304031 is a deficient number, since it is larger than the sum of its proper divisors (31548954913).

130221304031 is a wasteful number, since it uses less digits than its factorization.

130221304031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13373990.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 130221304031 its reverse (130403122031), we get a palindrome (260624426062).

The spelling of 130221304031 in words is "one hundred thirty billion, two hundred twenty-one million, three hundred four thousand, thirty-one".

Divisors: 1 7 13 91 107 749 1391 9737 13373863 93617041 173860219 1217021533 1431003341 10017023387 18603043433 130221304031