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130404481 is a prime number
BaseRepresentation
bin1111100010111…
…01000010000001
3100002101020022121
413301131002001
5231340420411
620535004241
73142263664
oct761350201
9302336277
10130404481
11676788a9
1237809681
132102a91c
14134676db
15b6ad571
hex7c5d081

130404481 has 2 divisors, whose sum is σ = 130404482. Its totient is φ = 130404480.

The previous prime is 130404451. The next prime is 130404517. The reversal of 130404481 is 184404031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103530625 + 26873856 = 10175^2 + 5184^2 .

It is a cyclic number.

It is not a de Polignac number, because 130404481 - 213 = 130396289 is a prime.

It is a super-2 number, since 2×1304044812 = 34010657329758722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (130404451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65202240 + 65202241.

It is an arithmetic number, because the mean of its divisors is an integer number (65202241).

Almost surely, 2130404481 is an apocalyptic number.

It is an amenable number.

130404481 is a deficient number, since it is larger than the sum of its proper divisors (1).

130404481 is an equidigital number, since it uses as much as digits as its factorization.

130404481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 130404481 is about 11419.4781404406. The cubic root of 130404481 is about 507.1045473484.

The spelling of 130404481 in words is "one hundred thirty million, four hundred four thousand, four hundred eighty-one".