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130120387 is a prime number
BaseRepresentation
bin1111100000101…
…11101011000011
3100001211210121121
413300113223003
5231302323022
620524533111
73140001505
oct760275303
9301753547
10130120387
11674a4411
12376b1197
1320c5b517
14133d1d75
15b6542c7
hex7c17ac3

130120387 has 2 divisors, whose sum is σ = 130120388. Its totient is φ = 130120386.

The previous prime is 130120339. The next prime is 130120391. The reversal of 130120387 is 783021031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130120387 is a prime.

It is a super-2 number, since 2×1301203872 = 33862630226059538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (130120307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65060193 + 65060194.

It is an arithmetic number, because the mean of its divisors is an integer number (65060194).

Almost surely, 2130120387 is an apocalyptic number.

130120387 is a deficient number, since it is larger than the sum of its proper divisors (1).

130120387 is an equidigital number, since it uses as much as digits as its factorization.

130120387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 130120387 is about 11407.0323485120. The cubic root of 130120387 is about 506.7360270253.

The spelling of 130120387 in words is "one hundred thirty million, one hundred twenty thousand, three hundred eighty-seven".