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385365470381 is a prime number
BaseRepresentation
bin1011001101110011001…
…00100110110010101101
31100211200210010020102022
411212321210212302231
522303212030023011
6453011235235525
736561500310623
oct5467144466255
91324623106368
10385365470381
11139483841721
126282a148ba5
132a455733c68
141491a715513
15a056c268db
hex59b9926cad

385365470381 has 2 divisors, whose sum is σ = 385365470382. Its totient is φ = 385365470380.

The previous prime is 385365470323. The next prime is 385365470423. The reversal of 385365470381 is 183074563583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221266752100 + 164098718281 = 470390^2 + 405091^2 .

It is an emirp because it is prime and its reverse (183074563583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 385365470381 - 26 = 385365470317 is a prime.

It is a super-2 number, since 2×3853654703812 (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385365470881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192682735190 + 192682735191.

It is an arithmetic number, because the mean of its divisors is an integer number (192682735191).

Almost surely, 2385365470381 is an apocalyptic number.

It is an amenable number.

385365470381 is a deficient number, since it is larger than the sum of its proper divisors (1).

385365470381 is an equidigital number, since it uses as much as digits as its factorization.

385365470381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 385365470381 in words is "three hundred eighty-five billion, three hundred sixty-five million, four hundred seventy thousand, three hundred eighty-one".