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131202793 is a prime number
BaseRepresentation
bin1111101000111…
…11111011101001
3100010212210101201
413310133323221
5232041442133
621004044201
73152130301
oct764377351
9303783351
10131202793
1168073667
1237b33661
132124a0b7
14135d4601
15b7b9d7d
hex7d1fee9

131202793 has 2 divisors, whose sum is σ = 131202794. Its totient is φ = 131202792.

The previous prime is 131202791. The next prime is 131202823. The reversal of 131202793 is 397202131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127170729 + 4032064 = 11277^2 + 2008^2 .

It is an emirp because it is prime and its reverse (397202131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131202793 - 21 = 131202791 is a prime.

Together with 131202791, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (131202791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65601396 + 65601397.

It is an arithmetic number, because the mean of its divisors is an integer number (65601397).

Almost surely, 2131202793 is an apocalyptic number.

It is an amenable number.

131202793 is a deficient number, since it is larger than the sum of its proper divisors (1).

131202793 is an equidigital number, since it uses as much as digits as its factorization.

131202793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 131202793 is about 11454.3787697107. The cubic root of 131202793 is about 508.1372428183.

The spelling of 131202793 in words is "one hundred thirty-one million, two hundred two thousand, seven hundred ninety-three".