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130965577 = 731794049
BaseRepresentation
bin1111100111001…
…10000001001001
3100010102201222221
413303212001021
5232011344302
620555014041
73150121561
oct763460111
9303381887
10130965577
1167a21416
1237a3a321
1321196132
1413571da1
15b76e937
hex7ce6049

130965577 has 4 divisors (see below), whose sum is σ = 132759700. Its totient is φ = 129171456.

The previous prime is 130965563. The next prime is 130965581. The reversal of 130965577 is 775569031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74580496 + 56385081 = 8636^2 + 7509^2 .

It is a de Polignac number, because none of the positive numbers 2k-130965577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130965377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 896952 + ... + 897097.

It is an arithmetic number, because the mean of its divisors is an integer number (33189925).

Almost surely, 2130965577 is an apocalyptic number.

It is an amenable number.

130965577 is a deficient number, since it is larger than the sum of its proper divisors (1794123).

130965577 is an equidigital number, since it uses as much as digits as its factorization.

130965577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794122.

The product of its (nonzero) digits is 198450, while the sum is 43.

The square root of 130965577 is about 11444.0192677223. The cubic root of 130965577 is about 507.8308189500.

The spelling of 130965577 in words is "one hundred thirty million, nine hundred sixty-five thousand, five hundred seventy-seven".

Divisors: 1 73 1794049 130965577