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130211421 = 3298211823
BaseRepresentation
bin1111100001011…
…01111001011101
3100002000102111020
413300231321131
5231313231141
620530514353
73140531064
oct760557135
9302012436
10130211421
116755684a
12377359b9
1320c90aa2
14134171db
15b671266
hex7c2de5d

130211421 has 16 divisors (see below), whose sum is σ = 179919360. Its totient is φ = 83666240.

The previous prime is 130211401. The next prime is 130211429. The reversal of 130211421 is 124112031.

It is a cyclic number.

It is not a de Polignac number, because 130211421 - 26 = 130211357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 130211421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130211429) 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 15 ways as a sum of consecutive naturals, for example, 70516 + ... + 72338.

It is an arithmetic number, because the mean of its divisors is an integer number (11244960).

Almost surely, 2130211421 is an apocalyptic number.

It is an amenable number.

130211421 is a deficient number, since it is larger than the sum of its proper divisors (49707939).

130211421 is a wasteful number, since it uses less digits than its factorization.

130211421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 130211421 is about 11411.0219086636. The cubic root of 130211421 is about 506.8541726261.

Adding to 130211421 its reverse (124112031), we get a palindrome (254323452).

The spelling of 130211421 in words is "one hundred thirty million, two hundred eleven thousand, four hundred twenty-one".

Divisors: 1 3 29 87 821 1823 2463 5469 23809 52867 71427 158601 1496683 4490049 43403807 130211421