Search a number
-
+
38280608689 is a prime number
BaseRepresentation
bin100011101001101100…
…111011101110110001
310122210211201102000211
4203221230323232301
51111344313434224
625330314144121
72523425543101
oct435154735661
9118724642024
1038280608689
1115264450994
127504122041
1337c0aa695b
141bd20b9201
15ee0aa2894
hex8e9b3bbb1

38280608689 has 2 divisors, whose sum is σ = 38280608690. Its totient is φ = 38280608688.

The previous prime is 38280608669. The next prime is 38280608719. The reversal of 38280608689 is 98680608283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22347858064 + 15932750625 = 149492^2 + 126225^2 .

It is a cyclic number.

It is not a de Polignac number, because 38280608689 - 25 = 38280608657 is a prime.

It is not a weakly prime, because it can be changed into another prime (38280608609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19140304344 + 19140304345.

It is an arithmetic number, because the mean of its divisors is an integer number (19140304345).

Almost surely, 238280608689 is an apocalyptic number.

It is an amenable number.

38280608689 is a deficient number, since it is larger than the sum of its proper divisors (1).

38280608689 is an equidigital number, since it uses as much as digits as its factorization.

38280608689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7962624, while the sum is 58.

The spelling of 38280608689 in words is "thirty-eight billion, two hundred eighty million, six hundred eight thousand, six hundred eighty-nine".