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197500481 is a prime number
BaseRepresentation
bin10111100010110…
…01111001000001
3111202122001201122
423301121321001
5401030003411
631333042025
74615504103
oct1361317101
9452561648
10197500481
11a1536042
1256186315
1331bc06b9
141c331573
15125139db
hexbc59e41

197500481 has 2 divisors, whose sum is σ = 197500482. Its totient is φ = 197500480.

The previous prime is 197500477. The next prime is 197500519. The reversal of 197500481 is 184005791.

197500481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 189888400 + 7612081 = 13780^2 + 2759^2 .

It is an emirp because it is prime and its reverse (184005791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197500481 - 22 = 197500477 is a prime.

It is a super-4 number, since 4×1975004814 (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (197500451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98750240 + 98750241.

It is an arithmetic number, because the mean of its divisors is an integer number (98750241).

Almost surely, 2197500481 is an apocalyptic number.

It is an amenable number.

197500481 is a deficient number, since it is larger than the sum of its proper divisors (1).

197500481 is an equidigital number, since it uses as much as digits as its factorization.

197500481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 197500481 is about 14053.4864357568. The cubic root of 197500481 is about 582.3571150210.

The spelling of 197500481 in words is "one hundred ninety-seven million, five hundred thousand, four hundred eighty-one".