Search a number
-
+
755721471341 is a prime number
BaseRepresentation
bin10101111111101001000…
…00101000010101101101
32200020122112021102112202
422333310200220111231
544340204144040331
61335101301511245
7105412324342514
oct12776440502555
92606575242482
10755721471341
11271555083861
12102569712525
1356358684965
142881185d67b
15149d0db7ecb
hexaff482856d

755721471341 has 2 divisors, whose sum is σ = 755721471342. Its totient is φ = 755721471340.

The previous prime is 755721471251. The next prime is 755721471359. The reversal of 755721471341 is 143174127557.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 587592770116 + 168128701225 = 766546^2 + 410035^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-755721471341 is a prime.

It is a super-2 number, since 2×7557214713412 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (755721479341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 377860735670 + 377860735671.

It is an arithmetic number, because the mean of its divisors is an integer number (377860735671).

Almost surely, 2755721471341 is an apocalyptic number.

It is an amenable number.

755721471341 is a deficient number, since it is larger than the sum of its proper divisors (1).

755721471341 is an equidigital number, since it uses as much as digits as its factorization.

755721471341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 823200, while the sum is 47.

Adding to 755721471341 its reverse (143174127557), we get a palindrome (898895598898).

The spelling of 755721471341 in words is "seven hundred fifty-five billion, seven hundred twenty-one million, four hundred seventy-one thousand, three hundred forty-one".