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8130231677 is a prime number
BaseRepresentation
bin1111001001001100…
…10111110101111101
3202222121110120011202
413210212113311331
5113122314403202
63422431025245
7405321554231
oct74446276575
922877416152
108130231677
1134a2338437
1216aa96b225
139c7510199
14571ac85c1
15328b72802
hex1e4997d7d

8130231677 has 2 divisors, whose sum is σ = 8130231678. Its totient is φ = 8130231676.

The previous prime is 8130231661. The next prime is 8130231679. The reversal of 8130231677 is 7761320318.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4104836761 + 4025394916 = 64069^2 + 63446^2 .

It is a cyclic number.

It is not a de Polignac number, because 8130231677 - 24 = 8130231661 is a prime.

It is a super-2 number, since 2×81302316772 (a number of 21 digits) contains 22 as substring.

Together with 8130231679, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8130231677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8130231679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4065115838 + 4065115839.

It is an arithmetic number, because the mean of its divisors is an integer number (4065115839).

Almost surely, 28130231677 is an apocalyptic number.

It is an amenable number.

8130231677 is a deficient number, since it is larger than the sum of its proper divisors (1).

8130231677 is an equidigital number, since it uses as much as digits as its factorization.

8130231677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 8130231677 is about 90167.7973391831. The cubic root of 8130231677 is about 2010.7942767357.

The spelling of 8130231677 in words is "eight billion, one hundred thirty million, two hundred thirty-one thousand, six hundred seventy-seven".