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120530197 is a prime number
BaseRepresentation
bin1110010111100…
…10010100010101
322101210120100101
413023302110111
5221323431242
615543214101
72662326664
oct713622425
9271716311
10120530197
1162044137
1234447331
131bc81358
1412016ddb
15a8ac9b7
hex72f2515

120530197 has 2 divisors, whose sum is σ = 120530198. Its totient is φ = 120530196.

The previous prime is 120530191. The next prime is 120530209. The reversal of 120530197 is 791035021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94458961 + 26071236 = 9719^2 + 5106^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120530197 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120530191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60265098 + 60265099.

It is an arithmetic number, because the mean of its divisors is an integer number (60265099).

Almost surely, 2120530197 is an apocalyptic number.

It is an amenable number.

120530197 is a deficient number, since it is larger than the sum of its proper divisors (1).

120530197 is an equidigital number, since it uses as much as digits as its factorization.

120530197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 120530197 is about 10978.6245495508. The cubic root of 120530197 is about 493.9677799744.

The spelling of 120530197 in words is "one hundred twenty million, five hundred thirty thousand, one hundred ninety-seven".