Search a number
-
+
61430353 is a prime number
BaseRepresentation
bin1110101001010…
…1101001010001
311021120222121021
43222111221101
5111211232403
610032355441
71344102145
oct352255121
9137528537
1061430353
1131748596
12186a5b81
13c95b02a
148231225
1555d68bd
hex3a95a51

61430353 has 2 divisors, whose sum is σ = 61430354. Its totient is φ = 61430352.

The previous prime is 61430351. The next prime is 61430417. The reversal of 61430353 is 35303416.

61430353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47651409 + 13778944 = 6903^2 + 3712^2 .

It is a cyclic number.

It is not a de Polignac number, because 61430353 - 21 = 61430351 is a prime.

Together with 61430351, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (61430351) 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, 30715176 + 30715177.

It is an arithmetic number, because the mean of its divisors is an integer number (30715177).

Almost surely, 261430353 is an apocalyptic number.

It is an amenable number.

61430353 is a deficient number, since it is larger than the sum of its proper divisors (1).

61430353 is an equidigital number, since it uses as much as digits as its factorization.

61430353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 61430353 is about 7837.7517822396. The cubic root of 61430353 is about 394.5732784266.

Adding to 61430353 its reverse (35303416), we get a palindrome (96733769).

The spelling of 61430353 in words is "sixty-one million, four hundred thirty thousand, three hundred fifty-three".