Search a number
-
+
472780751 is a prime number
BaseRepresentation
bin11100001011100…
…000111111001111
31012221121202021012
4130023200333033
51432012441001
6114525155435
714500366352
oct3413407717
91187552235
10472780751
112229661a3
121123bbb7b
1376c44a31
1446b0c299
152b78d2bb
hex1c2e0fcf

472780751 has 2 divisors, whose sum is σ = 472780752. Its totient is φ = 472780750.

The previous prime is 472780691. The next prime is 472780753. The reversal of 472780751 is 157087274.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 472780751 - 214 = 472764367 is a prime.

It is a super-2 number, since 2×4727807512 = 447043277032248002, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 472780753, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 472780699 and 472780708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (472780753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236390375 + 236390376.

It is an arithmetic number, because the mean of its divisors is an integer number (236390376).

Almost surely, 2472780751 is an apocalyptic number.

472780751 is a deficient number, since it is larger than the sum of its proper divisors (1).

472780751 is an equidigital number, since it uses as much as digits as its factorization.

472780751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 109760, while the sum is 41.

The square root of 472780751 is about 21743.5220468074. The cubic root of 472780751 is about 779.0283490633.

The spelling of 472780751 in words is "four hundred seventy-two million, seven hundred eighty thousand, seven hundred fifty-one".