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130433212 = 22713536761
BaseRepresentation
bin1111100011001…
…00000010111100
3100002102200201201
413301210002330
5231342330322
620535345244
73142443520
oct761440274
9302380651
10130433212
1167698448
1237822224
132103aa20
1413473d80
15b6b6d27
hex7c640bc

130433212 has 48 divisors (see below), whose sum is σ = 286276032. Its totient is φ = 50618880.

The previous prime is 130433209. The next prime is 130433221. The reversal of 130433212 is 212334031.

It is a self number, because there is not a number n which added to its sum of digits gives 130433212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15912 + ... + 22672.

It is an arithmetic number, because the mean of its divisors is an integer number (5964084).

Almost surely, 2130433212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130433212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143138016).

130433212 is an abundant number, since it is smaller than the sum of its proper divisors (155842820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130433212 is a wasteful number, since it uses less digits than its factorization.

130433212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6838 (or 6836 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 130433212 is about 11420.7360533374. The cubic root of 130433212 is about 507.1417867407.

Adding to 130433212 its reverse (212334031), we get a palindrome (342767243).

The spelling of 130433212 in words is "one hundred thirty million, four hundred thirty-three thousand, two hundred twelve".

Divisors: 1 2 4 7 13 14 26 28 52 53 91 106 182 212 364 371 689 742 1378 1484 2756 4823 6761 9646 13522 19292 27044 47327 87893 94654 175786 189308 351572 358333 615251 716666 1230502 1433332 2461004 2508331 4658329 5016662 9316658 10033324 18633316 32608303 65216606 130433212