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20601199 is a prime number
BaseRepresentation
bin100111010010…
…1100101101111
31102202122112101
41032211211233
520233214244
62013315531
7340051543
oct116454557
942678471
1020601199
11106a0a93
126a95ba7
134363c78
142a43a23
151c1e0d4
hex13a596f

20601199 has 2 divisors, whose sum is σ = 20601200. Its totient is φ = 20601198.

The previous prime is 20601197. The next prime is 20601211. The reversal of 20601199 is 99110602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20601199 - 21 = 20601197 is a prime.

Together with 20601197, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20601197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10300599 + 10300600.

It is an arithmetic number, because the mean of its divisors is an integer number (10300600).

Almost surely, 220601199 is an apocalyptic number.

20601199 is a deficient number, since it is larger than the sum of its proper divisors (1).

20601199 is an equidigital number, since it uses as much as digits as its factorization.

20601199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 20601199 is about 4538.8543708738. The cubic root of 20601199 is about 274.1347970129.

The spelling of 20601199 in words is "twenty million, six hundred one thousand, one hundred ninety-nine".