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130626449 is a prime number
BaseRepresentation
bin1111100100100…
…11001110010001
3100002210111210122
413302103032101
5231420021244
620543440025
73144210062
oct762231621
9302714718
10130626449
116780a648
12378b6015
13210a7975
14134c4569
15b7041ee
hex7c93391

130626449 has 2 divisors, whose sum is σ = 130626450. Its totient is φ = 130626448.

The previous prime is 130626403. The next prime is 130626493. The reversal of 130626449 is 944626031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116488849 + 14137600 = 10793^2 + 3760^2 .

It is a cyclic number.

It is not a de Polignac number, because 130626449 - 220 = 129577873 is a prime.

It is not a weakly prime, because it can be changed into another prime (130620449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65313224 + 65313225.

It is an arithmetic number, because the mean of its divisors is an integer number (65313225).

Almost surely, 2130626449 is an apocalyptic number.

It is an amenable number.

130626449 is a deficient number, since it is larger than the sum of its proper divisors (1).

130626449 is an equidigital number, since it uses as much as digits as its factorization.

130626449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 130626449 is about 11429.1928411415. The cubic root of 130626449 is about 507.3921069384.

The spelling of 130626449 in words is "one hundred thirty million, six hundred twenty-six thousand, four hundred forty-nine".