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130224742 = 2131497041
BaseRepresentation
bin1111100001100…
…01001001100110
3100002001002202121
413300301021212
5231314142432
620531100154
73140614654
oct760611146
9302032677
10130224742
116756585a
123774165a
1320c96b7b
141341bdd4
15b675197
hex7c31266

130224742 has 8 divisors (see below), whose sum is σ = 196828632. Its totient is φ = 64615200.

The previous prime is 130224739. The next prime is 130224799. The reversal of 130224742 is 247422031.

It is a happy number.

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

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 3 ways as a sum of consecutive naturals, for example, 248259 + ... + 248782.

It is an arithmetic number, because the mean of its divisors is an integer number (24603579).

Almost surely, 2130224742 is an apocalyptic number.

130224742 is a deficient number, since it is larger than the sum of its proper divisors (66603890).

130224742 is a wasteful number, since it uses less digits than its factorization.

130224742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497174.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 130224742 is about 11411.6055837906. The cubic root of 130224742 is about 506.8714562462.

Adding to 130224742 its reverse (247422031), we get a palindrome (377646773).

The spelling of 130224742 in words is "one hundred thirty million, two hundred twenty-four thousand, seven hundred forty-two".

Divisors: 1 2 131 262 497041 994082 65112371 130224742