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130121223 = 3167259723
BaseRepresentation
bin1111100000101…
…11111000000111
3100001211211202120
413300113320013
5231302334343
620524541023
73140004111
oct760277007
9301754676
10130121223
11674a5001
12376b1773
1320c5ba0b
14133d23b1
15b654683
hex7c17e07

130121223 has 8 divisors (see below), whose sum is σ = 174534528. Its totient is φ = 86227704.

The previous prime is 130121207. The next prime is 130121227. The reversal of 130121223 is 322121031.

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

It is not a de Polignac number, because 130121223 - 24 = 130121207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130121227) 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, 129361 + ... + 130362.

It is an arithmetic number, because the mean of its divisors is an integer number (21816816).

Almost surely, 2130121223 is an apocalyptic number.

130121223 is a deficient number, since it is larger than the sum of its proper divisors (44413305).

130121223 is a wasteful number, since it uses less digits than its factorization.

130121223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259893.

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

The square root of 130121223 is about 11407.0689925151. The cubic root of 130121223 is about 506.7371122521.

Adding to 130121223 its reverse (322121031), we get a palindrome (452242254).

The spelling of 130121223 in words is "one hundred thirty million, one hundred twenty-one thousand, two hundred twenty-three".

Divisors: 1 3 167 501 259723 779169 43373741 130121223