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38280608669 is a prime number
BaseRepresentation
bin100011101001101100…
…111011101110011101
310122210211201102000002
4203221230323232131
51111344313434134
625330314144045
72523425543042
oct435154735635
9118724642002
1038280608669
1115264450976
127504122025
1337c0aa6944
141bd20b91c9
15ee0aa287e
hex8e9b3bb9d

38280608669 has 2 divisors, whose sum is σ = 38280608670. Its totient is φ = 38280608668.

The previous prime is 38280608657. The next prime is 38280608689. The reversal of 38280608669 is 96680608283.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32621055769 + 5659552900 = 180613^2 + 75230^2 .

It is a cyclic number.

It is not a de Polignac number, because 38280608669 - 224 = 38263831453 is a prime.

It is a super-2 number, since 2×382806086692 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 19140304334 + 19140304335.

It is an arithmetic number, because the mean of its divisors is an integer number (19140304335).

Almost surely, 238280608669 is an apocalyptic number.

It is an amenable number.

38280608669 is a deficient number, since it is larger than the sum of its proper divisors (1).

38280608669 is an equidigital number, since it uses as much as digits as its factorization.

38280608669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5971968, while the sum is 56.

The spelling of 38280608669 in words is "thirty-eight billion, two hundred eighty million, six hundred eight thousand, six hundred sixty-nine".