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130762081 is a prime number
BaseRepresentation
bin1111100101101…
…00010101100001
3100010001101212001
413302310111201
5231433341311
620550404001
73145313362
oct762642541
9303041761
10130762081
11678a253a
1237960601
1321124618
141351bb69
15b72e4c1
hex7cb4561

130762081 has 2 divisors, whose sum is σ = 130762082. Its totient is φ = 130762080.

The previous prime is 130762063. The next prime is 130762129. The reversal of 130762081 is 180267031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70560000 + 60202081 = 8400^2 + 7759^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130762081 is a prime.

It is a super-2 number, since 2×1307620812 = 34197443654901122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (130762031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65381040 + 65381041.

It is an arithmetic number, because the mean of its divisors is an integer number (65381041).

Almost surely, 2130762081 is an apocalyptic number.

It is an amenable number.

130762081 is a deficient number, since it is larger than the sum of its proper divisors (1).

130762081 is an equidigital number, since it uses as much as digits as its factorization.

130762081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 130762081 is about 11435.1248790732. The cubic root of 130762081 is about 507.5676579133.

The spelling of 130762081 in words is "one hundred thirty million, seven hundred sixty-two thousand, eighty-one".