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130395506 = 265197753
BaseRepresentation
bin1111100010110…
…10110101110010
3100002100210000012
413301122311302
5231340124011
620534454522
73142225553
oct761326562
9302323005
10130395506
116767208a
1237804442
1321026807
141346432a
15b6aaa8b
hex7c5ad72

130395506 has 4 divisors (see below), whose sum is σ = 195593262. Its totient is φ = 65197752.

The previous prime is 130395497. The next prime is 130395527. The reversal of 130395506 is 605593031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 605593031 = 1241348787.

It can be written as a sum of positive squares in only one way, i.e., 122301481 + 8094025 = 11059^2 + 2845^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32598875 + ... + 32598878.

Almost surely, 2130395506 is an apocalyptic number.

130395506 is a deficient number, since it is larger than the sum of its proper divisors (65197756).

130395506 is an equidigital number, since it uses as much as digits as its factorization.

130395506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65197755.

The product of its (nonzero) digits is 12150, while the sum is 32.

The square root of 130395506 is about 11419.0851647582. The cubic root of 130395506 is about 507.0929133726.

The spelling of 130395506 in words is "one hundred thirty million, three hundred ninety-five thousand, five hundred six".

Divisors: 1 2 65197753 130395506