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130277029 = 612135689
BaseRepresentation
bin1111100001111…
…01111010100101
3100002010202111011
413300331322211
5231322331104
620532142221
73141223261
oct760757245
9302122434
10130277029
11675a1073
1237767971
1320cb48cc
14134330a1
15b685904
hex7c3dea5

130277029 has 4 divisors (see below), whose sum is σ = 132412780. Its totient is φ = 128141280.

The previous prime is 130277027. The next prime is 130277039. The reversal of 130277029 is 920772031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 920772031 = 1009912559.

It can be written as a sum of positive squares in 2 ways, for example, as 37540129 + 92736900 = 6127^2 + 9630^2 .

It is a cyclic number.

It is not a de Polignac number, because 130277029 - 21 = 130277027 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130277027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067784 + ... + 1067905.

It is an arithmetic number, because the mean of its divisors is an integer number (33103195).

Almost surely, 2130277029 is an apocalyptic number.

It is an amenable number.

130277029 is a deficient number, since it is larger than the sum of its proper divisors (2135751).

130277029 is an equidigital number, since it uses as much as digits as its factorization.

130277029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135750.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 130277029 is about 11413.8963110762. The cubic root of 130277029 is about 506.9392857568.

The spelling of 130277029 in words is "one hundred thirty million, two hundred seventy-seven thousand, twenty-nine".

Divisors: 1 61 2135689 130277029