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197240353 is a prime number
BaseRepresentation
bin10111100000110…
…10011000100001
3111202010211220021
423300122120201
5400443142403
631323313441
74613341522
oct1360323041
9452124807
10197240353
11a1378662
125607b881
1331b2c18b
141c2a4849
15124b18bd
hexbc1a621

197240353 has 2 divisors, whose sum is σ = 197240354. Its totient is φ = 197240352.

The previous prime is 197240333. The next prime is 197240359. The reversal of 197240353 is 353042791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167133184 + 30107169 = 12928^2 + 5487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-197240353 is a prime.

It is not a weakly prime, because it can be changed into another prime (197240359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98620176 + 98620177.

It is an arithmetic number, because the mean of its divisors is an integer number (98620177).

Almost surely, 2197240353 is an apocalyptic number.

It is an amenable number.

197240353 is a deficient number, since it is larger than the sum of its proper divisors (1).

197240353 is an equidigital number, since it uses as much as digits as its factorization.

197240353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 197240353 is about 14044.2284586943. The cubic root of 197240353 is about 582.1013283893.

The spelling of 197240353 in words is "one hundred ninety-seven million, two hundred forty thousand, three hundred fifty-three".