Search a number
-
+
38414872897 is a prime number
BaseRepresentation
bin100011110001101101…
…000111000101000001
310200011012100201220021
4203301231013011001
51112133201413042
625351512013441
72526646013662
oct436155070501
9120135321807
1038414872897
1115323215645
127541091281
13381285632b
141c05c69369
15eec774867
hex8f1b47141

38414872897 has 2 divisors, whose sum is σ = 38414872898. Its totient is φ = 38414872896.

The previous prime is 38414872861. The next prime is 38414872931. The reversal of 38414872897 is 79827841483.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37968860736 + 446012161 = 194856^2 + 21119^2 .

It is a cyclic number.

It is not a de Polignac number, because 38414872897 - 235 = 4055134529 is a prime.

It is not a weakly prime, because it can be changed into another prime (38414872597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19207436448 + 19207436449.

It is an arithmetic number, because the mean of its divisors is an integer number (19207436449).

Almost surely, 238414872897 is an apocalyptic number.

It is an amenable number.

38414872897 is a deficient number, since it is larger than the sum of its proper divisors (1).

38414872897 is an equidigital number, since it uses as much as digits as its factorization.

38414872897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21676032, while the sum is 61.

The spelling of 38414872897 in words is "thirty-eight billion, four hundred fourteen million, eight hundred seventy-two thousand, eight hundred ninety-seven".