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130211223 = 3179242479
BaseRepresentation
bin1111100001011…
…01110110010111
3100002000102012220
413300231312113
5231313224343
620530513423
73140530362
oct760556627
9302012186
10130211223
116755668a
1237735873
1320c9097c
14134170d9
15b671183
hex7c2dd97

130211223 has 8 divisors (see below), whose sum is σ = 174585600. Its totient is φ = 86322168.

The previous prime is 130211209. The next prime is 130211227. The reversal of 130211223 is 322112031.

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

It is not a de Polignac number, because 130211223 - 28 = 130210967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130211227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120703 + ... + 121776.

It is an arithmetic number, because the mean of its divisors is an integer number (21823200).

Almost surely, 2130211223 is an apocalyptic number.

130211223 is a deficient number, since it is larger than the sum of its proper divisors (44374377).

130211223 is a wasteful number, since it uses less digits than its factorization.

130211223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242661.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 130211223 is about 11411.0132328378. The cubic root of 130211223 is about 506.8539157178.

Adding to 130211223 its reverse (322112031), we get a palindrome (452323254).

The spelling of 130211223 in words is "one hundred thirty million, two hundred eleven thousand, two hundred twenty-three".

Divisors: 1 3 179 537 242479 727437 43403741 130211223