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130344212 = 22293167541
BaseRepresentation
bin1111100010011…
…10010100010100
3100002021011122102
413301032110110
5231332003322
620533421232
73141623165
oct761162424
9302234572
10130344212
1167637599
123779a818
132100936b
141344d76c
15b69a792
hex7c4e514

130344212 has 48 divisors (see below), whose sum is σ = 247672320. Its totient is φ = 59875200.

The previous prime is 130344209. The next prime is 130344217. The reversal of 130344212 is 212443031.

It is a super-2 number, since 2×1303442122 = 33979227203801888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130344217) by changing a digit.

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, 240662 + ... + 241202.

It is an arithmetic number, because the mean of its divisors is an integer number (5159840).

Almost surely, 2130344212 is an apocalyptic number.

It is an amenable number.

130344212 is a deficient number, since it is larger than the sum of its proper divisors (117328108).

130344212 is a wasteful number, since it uses less digits than its factorization.

130344212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 130344212 is about 11416.8389670697. The cubic root of 130344212 is about 507.0264125243.

Adding to 130344212 its reverse (212443031), we get a palindrome (342787243).

The spelling of 130344212 in words is "one hundred thirty million, three hundred forty-four thousand, two hundred twelve".

Divisors: 1 2 4 29 31 58 62 67 116 124 134 268 541 899 1082 1798 1943 2077 2164 3596 3886 4154 7772 8308 15689 16771 31378 33542 36247 60233 62756 67084 72494 120466 144988 240932 486359 972718 1051163 1123657 1945436 2102326 2247314 4204652 4494628 32586053 65172106 130344212