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120424397 is a prime number
BaseRepresentation
bin1110010110110…
…00011111001101
322101121012012212
413023120133031
5221312040042
615541040205
72661406352
oct713303715
9271535185
10120424397
1161a816a5
12343b6065
131bc45152
1411dca629
15a88b482
hex72d87cd

120424397 has 2 divisors, whose sum is σ = 120424398. Its totient is φ = 120424396.

The previous prime is 120424373. The next prime is 120424453. The reversal of 120424397 is 793424021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119990116 + 434281 = 10954^2 + 659^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120424397 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 (120424357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60212198 + 60212199.

It is an arithmetic number, because the mean of its divisors is an integer number (60212199).

Almost surely, 2120424397 is an apocalyptic number.

It is an amenable number.

120424397 is a deficient number, since it is larger than the sum of its proper divisors (1).

120424397 is an equidigital number, since it uses as much as digits as its factorization.

120424397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 120424397 is about 10973.8050374517. The cubic root of 120424397 is about 493.8232046136.

The spelling of 120424397 in words is "one hundred twenty million, four hundred twenty-four thousand, three hundred ninety-seven".