Search a number
-
+
126622471 is a prime number
BaseRepresentation
bin1111000110000…
…01101100000111
322211021002101011
413203001230013
5224403404341
620321543051
73065162503
oct743015407
9284232334
10126622471
1165525378
12364a4a87
1320305351
1412b61303
15b1b2b81
hex78c1b07

126622471 has 2 divisors, whose sum is σ = 126622472. Its totient is φ = 126622470.

The previous prime is 126622453. The next prime is 126622493. The reversal of 126622471 is 174226621.

It is a weak prime.

It is an emirp because it is prime and its reverse (174226621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126622471 - 27 = 126622343 is a prime.

It is a super-3 number, since 3×1266224713 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126622411) 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 as a sum of consecutive naturals, namely, 63311235 + 63311236.

It is an arithmetic number, because the mean of its divisors is an integer number (63311236).

Almost surely, 2126622471 is an apocalyptic number.

126622471 is a deficient number, since it is larger than the sum of its proper divisors (1).

126622471 is an equidigital number, since it uses as much as digits as its factorization.

126622471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

The square root of 126622471 is about 11252.6650621086. The cubic root of 126622471 is about 502.1540018931.

The spelling of 126622471 in words is "one hundred twenty-six million, six hundred twenty-two thousand, four hundred seventy-one".